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| | <link:label id="lab_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label> |
| | <link:label id="lab_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120" xlink:to="lab_us-gaap_StatementLineItems_D21FD0167D655959953DEAB9A045E120" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label> |
| | <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Financial Position [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_A4A4937D558CBF1A5A95EAB9A0450EBF" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> ASSETS </link:label> |
| | <link:label id="lab_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468" xlink:to="lab_us-gaap_AssetsAbstract_01CCC965F8E1F6EC05DCEAB9A045B468" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents </link:label> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, at Carrying Value </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_F2972CF96BD0329EDA76EAB9A0453939" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Receivables, net </link:label> |
| | <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent_8B7BC08CDB9F08A1AF2DEAB9A04533F8" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Prepaid expenses </link:label> |
| | <link:label id="lab_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Prepaid Expense, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D" xlink:to="lab_us-gaap_PrepaidExpenseCurrent_601BDECC6EB309EB9F14EAB9A045042D" xlink:type="arc"/> |
| | <link:label id="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6_terseLabel_en-US" xlink:label="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred site rental receivables and other current assets </link:label> |
| | <link:label id="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6_label_en-US" xlink:label="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Site Rental Receivables and Other Current Assets </link:label> |
| | <link:label id="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6_documentation_en-US" xlink:label="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> For a classified balance sheet, the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, one year or less after the balance sheet date. Such receivable is reduced by allowances attributable to, for instance, credit risk associated with a lessee. Also includes the aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets" xlink:label="loc_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:to="lab_gsv_DeferredSiteRentalReceivablesAndOtherCurrentAssets_9F469C62F48C2F82D304EAB9A045E9F6" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current assets </link:label> |
| | <link:label id="lab_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C" xlink:to="lab_us-gaap_AssetsCurrent_F718FF9A6FC8878E5E15EAB9A049C94C" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred site rental receivables </link:label> |
| | <link:label id="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9_label_en-US" xlink:label="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Rent Receivables, Net, Noncurrent </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRentReceivablesNetNoncurrent" xlink:label="loc_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9" xlink:to="lab_us-gaap_DeferredRentReceivablesNetNoncurrent_61C6FFB4B49F02AF96FBEAB9A049A1A9" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Property and equipment, net of accumulated depreciation of $1,118,425 and $1,095,355, respectively </link:label> |
| | <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Net </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_8BC184EFE03B9075445BEAB9A049E9B4" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease, right-of-use assets </link:label> |
| | <link:label id="lab_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Right-of-Use Asset </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA" xlink:to="lab_us-gaap_OperatingLeaseRightOfUseAsset_776914221BE561D1E2ECEAB9A0497EFA" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label> |
| | <link:label id="lab_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01_label_en-US" xlink:label="lab_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Goodwill </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01" xlink:to="lab_us-gaap_Goodwill_B43643F94188B45A8812EAB9A049CE01" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D_terseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other intangible assets, net </link:label> |
| | <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Intangible Assets, Net (Excluding Goodwill) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D" xlink:to="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_6D29F6E2DE5A3A314EB8EAB9A049B55D" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term prepaid rent and other assets, net </link:label> |
| | <link:label id="lab_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Assets, Noncurrent </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666" xlink:to="lab_us-gaap_OtherAssetsNoncurrent_9D3D2AC7DDB6884B2E9EEAB9A0490666" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total assets </link:label> |
| | <link:label id="lab_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC_label_en-US" xlink:label="lab_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC" xlink:to="lab_us-gaap_Assets_205387351D44B587E76EEAB9A04950FC" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> LIABILITIES AND EQUITY </link:label> |
| | <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_32C19AF375012125254EEAB9A04900DC" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accounts payable </link:label> |
| | <link:label id="lab_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accounts Payable, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368" xlink:to="lab_us-gaap_AccountsPayableCurrent_EBC28949D04D5182B667EAB9A049E368" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accrued interest </link:label> |
| | <link:label id="lab_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Payable, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384" xlink:to="lab_us-gaap_InterestPayableCurrent_EB596B6D98AF1B5248CDEAB9A0491384" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred revenues(a) </link:label> |
| | <link:label id="lab_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B_label_en-US" xlink:label="lab_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Revenue, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B" xlink:to="lab_us-gaap_DeferredRevenueCurrent_2F7864BEB774B6331F6CEAB9A04D457B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other accrued liabilities </link:label> |
| | <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accrued Liabilities, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent_7A21339400EB5F1AB6A9EAB9A04D1F25" xlink:type="arc"/> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8_terseLabel_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities—third parties </link:label> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8_label_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities, third party </link:label> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8_documentation_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities, third party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_Currentportionofoperatingleaseliabilitiesthirdparty" xlink:label="loc_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:to="lab_gsv_Currentportionofoperatingleaseliabilitiesthirdparty_E7070F58435D69222830EAB9A0514AA8" xlink:type="arc"/> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2_terseLabel_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities—related parties </link:label> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2_label_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities, related party </link:label> |
| | <link:label id="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2_documentation_en-US" xlink:label="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Current portion of operating lease liabilities, related party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_Currentportionofoperatingleaseliabilitiesrelatedparty" xlink:label="loc_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:to="lab_gsv_Currentportionofoperatingleaseliabilitiesrelatedparty_DD7C4321774C0652C967EAB9A05179B2" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total current liabilities </link:label> |
| | <link:label id="lab_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities, Current </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709" xlink:to="lab_us-gaap_LiabilitiesCurrent_21105A8435E771A11E55EAB9A051B709" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt </link:label> |
| | <link:label id="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt and Lease Obligation </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582" xlink:to="lab_us-gaap_LongTermDebtAndCapitalLeaseObligations_4F63D66ABB71550CF2C7EAB9A0516582" xlink:type="arc"/> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33_terseLabel_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities—third parties </link:label> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33_label_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities, third party </link:label> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33_documentation_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities, third party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_Operatingleaseliabilitiesthirdparty" xlink:label="loc_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:to="lab_gsv_Operatingleaseliabilitiesthirdparty_A02633C28F75BF00E2A6EAB9A051CE33" xlink:type="arc"/> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572_terseLabel_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities—related parties </link:label> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572_label_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities, related party </link:label> |
| | <link:label id="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572_documentation_en-US" xlink:label="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Operating lease liabilities, related party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_Operatingleaseliabilitiesrelatedparty" xlink:label="loc_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:to="lab_gsv_Operatingleaseliabilitiesrelatedparty_B0818E33047779428275EAB9A0518572" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent </link:label> |
| | <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Liabilities, Noncurrent </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent_C54B7ACE526FA9012226EAB9B2F9A01B" xlink:type="arc"/> |
| | <link:label id="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C_terseLabel_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred ground lease payable </link:label> |
| | <link:label id="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C_label_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Deferred Ground Lease Payable </link:label> |
| | <link:label id="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C_documentation_en-US" xlink:label="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Deferred Ground Lease Payable </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_DeferredGroundLeasePayable" xlink:label="loc_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:to="lab_gsv_DeferredGroundLeasePayable_1AE1FB586BC872375DE1EAB9A051EF2C" xlink:type="arc"/> |
| | <link:label id="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F_terseLabel_en-US" xlink:label="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other liabilities </link:label> |
| | <link:label id="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F_label_en-US" xlink:label="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Above Market Leases and Other Liabilities </link:label> |
| | <link:label id="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F_documentation_en-US" xlink:label="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Above market leases for land interests under the Company's towers and the aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_AboveMarketLeasesandOtherLiabilities" xlink:label="loc_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:to="lab_gsv_AboveMarketLeasesandOtherLiabilities_E6AE0344AE550D1E5C45EAB9A0515D1F" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities </link:label> |
| | <link:label id="lab_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD_label_en-US" xlink:label="lab_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD" xlink:to="lab_us-gaap_Liabilities_ADF47AD14D58F04C6D9EEAB9A051DEDD" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Member's equity: </link:label> |
| | <link:label id="lab_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Stockholders' Equity Attributable to Parent [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F" xlink:to="lab_us-gaap_StockholdersEquityAbstract_3FF1AF800E12BE7F1427EAB9A0510B1F" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA_terseLabel_en-US" xlink:label="lab_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Member's equity </link:label> |
| | <link:label id="lab_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA_label_en-US" xlink:label="lab_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Capital </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersCapital" xlink:label="loc_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA" xlink:to="lab_us-gaap_MembersCapital_69053768C492C11B62FFEAB9A051E8CA" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F0A457A24A173FD1C09CEAB9A0517103_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F0A457A24A173FD1C09CEAB9A0517103" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated earnings (deficit) </link:label> |
| | <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F0A457A24A173FD1C09CEAB9A0517103_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F0A457A24A173FD1C09CEAB9A0517103" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings (Accumulated Deficit) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_F0A457A24A173FD1C09CEAB9A0517103" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_MembersEquity_B36AA85B751CEC6AA328EAB9A051CB80_totalLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_B36AA85B751CEC6AA328EAB9A051CB80" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total member's equity </link:label> |
| | <link:label id="lab_us-gaap_MembersEquity_B36AA85B751CEC6AA328EAB9A051CB80_label_en-US" xlink:label="lab_us-gaap_MembersEquity_B36AA85B751CEC6AA328EAB9A051CB80" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Equity </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_B36AA85B751CEC6AA328EAB9A051CB80" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EE0CD7893ECB40829ACEAB9A05183DF_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EE0CD7893ECB40829ACEAB9A05183DF" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total liabilities and equity </link:label> |
| | <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EE0CD7893ECB40829ACEAB9A05183DF_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_4EE0CD7893ECB40829ACEAB9A05183DF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_4EE0CD7893ECB40829ACEAB9A05183DF" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_GuaranteesAbstract_8B00DD4B99B885ABF35FE5A49FDAE5F6_label_en-US" xlink:label="lab_us-gaap_GuaranteesAbstract_8B00DD4B99B885ABF35FE5A49FDAE5F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantees [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GuaranteesAbstract" xlink:label="loc_us-gaap_GuaranteesAbstract_8B00DD4B99B885ABF35FE5A49FDAE5F6" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Guarantor Subsidiaries </link:label> |
| | <link:label id="lab_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7_label_en-US" xlink:label="lab_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Guarantees [Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GuaranteesTextBlock" xlink:label="loc_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7" xlink:to="lab_us-gaap_GuaranteesTextBlock_6FCE5E9313C31DD1153EE5A49FDADBE7" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_SupplementalCashFlowElementsAbstract_4E58843C445023B02E88FD658B11EB76_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowElementsAbstract_C8E03C47F09255FCAC9EA8FB6139FA54" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Elements [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowElementsAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowElementsAbstract_C8E03C47F09255FCAC9EA8FB6139FA54" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowElementsAbstract_C8E03C47F09255FCAC9EA8FB6139FA54" xlink:to="lab_us-gaap_SupplementalCashFlowElementsAbstract_C8E03C47F09255FCAC9EA8FB6139FA54" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OperatingLeasePayments_8CD7DF93286F8BEA1409FD658B12EB15_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_63F2A26FE33C52DB8F7434A22F7BAF44" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash payments related to operating lease liabilities </link:label> |
| | <link:label id="lab_us-gaap_OperatingLeasePayments_8CD7DF93286F8BEA1409FD658B12EB15_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments_63F2A26FE33C52DB8F7434A22F7BAF44" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Lease, Payments </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasePayments" xlink:label="loc_us-gaap_OperatingLeasePayments_63F2A26FE33C52DB8F7434A22F7BAF44" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasePayments_63F2A26FE33C52DB8F7434A22F7BAF44" xlink:to="lab_us-gaap_OperatingLeasePayments_63F2A26FE33C52DB8F7434A22F7BAF44" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_InterestPaid_A1E04997B7B40E4A3ABFFD658B122F23_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaid_E850A8CEF8B45D3089CF88A81E6FDE15" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest Paid </link:label> |
| | <link:label id="lab_us-gaap_InterestPaid_A1E04997B7B40E4A3ABFFD658B122F23_label_en-US" xlink:label="lab_us-gaap_InterestPaid_E850A8CEF8B45D3089CF88A81E6FDE15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Interest Paid, Including Capitalized Interest, Operating and Investing Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_E850A8CEF8B45D3089CF88A81E6FDE15" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaid_E850A8CEF8B45D3089CF88A81E6FDE15" xlink:to="lab_us-gaap_InterestPaid_E850A8CEF8B45D3089CF88A81E6FDE15" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_BB59B9A5C823D1D62320FD658B1217FD_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_7AE53EA9A56E5E39AEC319BBB40EC8F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] </link:label> |
| | <link:label id="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_BB59B9A5C823D1D62320FD658B1217FD_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_7AE53EA9A56E5E39AEC319BBB40EC8F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCashFlowSupplementalDisclosuresTableTextBlock_7AE53EA9A56E5E39AEC319BBB40EC8F6" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ACC6C9A4E4B789497BB5FD658B121285_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_EAD82EADD0B555DCBF774D4BC9E09546" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> New ROU assets obtained in exchange for operating lease liabilities </link:label> |
| | <link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_ACC6C9A4E4B789497BB5FD658B121285_label_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_EAD82EADD0B555DCBF774D4BC9E09546" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Right-of-Use Asset Obtained in Exchange for Operating Lease Liability </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_EAD82EADD0B555DCBF774D4BC9E09546" xlink:type="locator"/> |
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| | <link:label id="lab_gsv_DocumentAndEntityInformation_F9CBE8A0F5EEB019F6B5CD06247974DB_label_en-US" xlink:label="lab_gsv_DocumentAndEntityInformation_F9CBE8A0F5EEB019F6B5CD06247974DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document and Entity Information </link:label> |
| | <link:label id="lab_gsv_DocumentAndEntityInformation_F9CBE8A0F5EEB019F6B5CD06247974DB_documentation_en-US" xlink:label="lab_gsv_DocumentAndEntityInformation_F9CBE8A0F5EEB019F6B5CD06247974DB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Document and Entity Information [Abstract] </link:label> |
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| | <link:label id="lab_dei_DocumentType_A0EE1CF0771701B7E762CD062479B43B_label_en-US" xlink:label="lab_dei_DocumentType_A0EE1CF0771701B7E762CD062479B43B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Type </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_A0EE1CF0771701B7E762CD062479B43B" xlink:type="locator"/> |
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| | <link:label id="lab_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315_terseLabel_en-US" xlink:label="lab_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Quarterly Report </link:label> |
| | <link:label id="lab_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315_label_en-US" xlink:label="lab_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Quarterly Report </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentQuarterlyReport" xlink:label="loc_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315" xlink:to="lab_dei_DocumentQuarterlyReport_73AA12BEE54247724849CD062479A315" xlink:type="arc"/> |
| | <link:label id="lab_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Period End Date </link:label> |
| | <link:label id="lab_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Period End Date </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA" xlink:to="lab_dei_DocumentPeriodEndDate_0A5FBABC96BB0B43C483CD06247921CA" xlink:type="arc"/> |
| | <link:label id="lab_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Transition Report </link:label> |
| | <link:label id="lab_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF_label_en-US" xlink:label="lab_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Transition Report </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentTransitionReport" xlink:label="loc_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF" xlink:to="lab_dei_DocumentTransitionReport_8EC9B8F4434CD3F250A9CD06247A15BF" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity File Number </link:label> |
| | <link:label id="lab_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D_label_en-US" xlink:label="lab_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity File Number </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D" xlink:to="lab_dei_EntityFileNumber_2B96EF303C4786AE05AACD06247AE61D" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label> |
| | <link:label id="lab_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C_label_en-US" xlink:label="lab_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Registrant Name </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C" xlink:to="lab_dei_EntityRegistrantName_F6B01C674DA4DB163A72CD06247A5A5C" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label> |
| | <link:label id="lab_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Incorporation, State or Country Code </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0" xlink:to="lab_dei_EntityIncorporationStateCountryCode_0502AD1418104ED8E8F8CD06247BCDC0" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label> |
| | <link:label id="lab_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Tax Identification Number </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1" xlink:to="lab_dei_EntityTaxIdentificationNumber_5FC8846F385FE222B103CD06247B79C1" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label> |
| | <link:label id="lab_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Common Stock, Shares Outstanding </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6" xlink:to="lab_dei_EntityCommonStockSharesOutstanding_78621CD0B45CEA5F1604CD06247B0FF6" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label> |
| | <link:label id="lab_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line One </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02" xlink:to="lab_dei_EntityAddressAddressLine1_7CF801CDD42541394052CD06247BAC02" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line Two </link:label> |
| | <link:label id="lab_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Address Line Two </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB" xlink:to="lab_dei_EntityAddressAddressLine2_88A172DD7AE05C268C6ECD06247B91CB" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446_terseLabel_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label> |
| | <link:label id="lab_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446_label_en-US" xlink:label="lab_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, City or Town </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446" xlink:to="lab_dei_EntityAddressCityOrTown_BFB8BF9EE642F7B9AECACD06247CD446" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label> |
| | <link:label id="lab_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, State or Province </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D" xlink:to="lab_dei_EntityAddressStateOrProvince_4E7260DA31EFD39A93CBCD06247C9D6D" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label> |
| | <link:label id="lab_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Address, Postal Zip Code </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B" xlink:to="lab_dei_EntityAddressPostalZipCode_8E7A72BDE9CDEE374B7ACD06247C232B" xlink:type="arc"/> |
| | <link:label id="lab_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label> |
| | <link:label id="lab_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726_label_en-US" xlink:label="lab_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> City Area Code </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726" xlink:to="lab_dei_CityAreaCode_021A4E70DC20A35688D0CD06247CD726" xlink:type="arc"/> |
| | <link:label id="lab_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label> |
| | <link:label id="lab_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14_label_en-US" xlink:label="lab_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Local Phone Number </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14" xlink:to="lab_dei_LocalPhoneNumber_B2AB5115539B8BAFDBE3CD06247D9F14" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label> |
| | <link:label id="lab_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Current Reporting Status </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14" xlink:to="lab_dei_EntityCurrentReportingStatus_991209AC3F78DE4B6D9ECD06247D6E14" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label> |
| | <link:label id="lab_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Interactive Data Current </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F" xlink:to="lab_dei_EntityInteractiveDataCurrent_8CA96528C99A33A803B0CD06247D253F" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label> |
| | <link:label id="lab_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D_label_en-US" xlink:label="lab_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Filer Category </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D" xlink:to="lab_dei_EntityFilerCategory_6171A7A8332C8B596CCDCD06247DD55D" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1_terseLabel_en-US" xlink:label="lab_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label> |
| | <link:label id="lab_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1_label_en-US" xlink:label="lab_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Small Business </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1" xlink:to="lab_dei_EntitySmallBusiness_7396DAE534CEE5DF33D8CD06247DB3F1" xlink:type="arc"/> |
| | <link:label id="lab_dei_EntityEmergingGrowthCompany_B8913BE85AC637052D69CD06247E6A79_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_B8913BE85AC637052D69CD06247E6A79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label> |
| | <link:label id="lab_dei_EntityEmergingGrowthCompany_B8913BE85AC637052D69CD06247E6A79_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany_B8913BE85AC637052D69CD06247E6A79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Emerging Growth Company </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_B8913BE85AC637052D69CD06247E6A79" xlink:type="locator"/> |
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| | <link:label id="lab_dei_EntityShellCompany_C98FE400ADB50D3F32FFCD06247E493F_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany_C98FE400ADB50D3F32FFCD06247E493F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Shell Company </link:label> |
| | <link:label id="lab_dei_EntityShellCompany_C98FE400ADB50D3F32FFCD06247E493F_label_en-US" xlink:label="lab_dei_EntityShellCompany_C98FE400ADB50D3F32FFCD06247E493F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Shell Company </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany_C98FE400ADB50D3F32FFCD06247E493F" xlink:type="locator"/> |
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| | <link:label id="lab_dei_EntityCentralIndexKey_06FCF32F34B0C99E5EABCD06247E8B98_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_06FCF32F34B0C99E5EABCD06247E8B98" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label> |
| | <link:label id="lab_dei_EntityCentralIndexKey_06FCF32F34B0C99E5EABCD06247E8B98_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_06FCF32F34B0C99E5EABCD06247E8B98" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Entity Central Index Key </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_06FCF32F34B0C99E5EABCD06247E8B98" xlink:type="locator"/> |
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| | <link:label id="lab_dei_CurrentFiscalYearEndDate_2C0A8D6918B0BB3DA33FCD06247E6B25_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_2C0A8D6918B0BB3DA33FCD06247E6B25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label> |
| | <link:label id="lab_dei_CurrentFiscalYearEndDate_2C0A8D6918B0BB3DA33FCD06247E6B25_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_2C0A8D6918B0BB3DA33FCD06247E6B25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Current Fiscal Year End Date </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_2C0A8D6918B0BB3DA33FCD06247E6B25" xlink:type="locator"/> |
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| | <link:label id="lab_dei_DocumentFiscalYearFocus_0B6577A62CA75512E748CD06247EF9AB_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_0B6577A62CA75512E748CD06247EF9AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Document Fiscal Year Focus </link:label> |
| | <link:label id="lab_dei_DocumentFiscalYearFocus_0B6577A62CA75512E748CD06247EF9AB_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_0B6577A62CA75512E748CD06247EF9AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Fiscal Year Focus </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_0B6577A62CA75512E748CD06247EF9AB" xlink:type="locator"/> |
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| | <link:label id="lab_dei_DocumentFiscalPeriodFocus_C546C05E810CE66C9C27CD06247E94E7_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_C546C05E810CE66C9C27CD06247E94E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Document Fiscal Period Focus </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_C546C05E810CE66C9C27CD06247E94E7" xlink:type="locator"/> |
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| | <link:label id="lab_dei_AmendmentFlag_5714E6BE53BB8BD0B931CD06247FB282_label_en-US" xlink:label="lab_dei_AmendmentFlag_5714E6BE53BB8BD0B931CD06247FB282" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amendment Flag </link:label> |
| | <link:loc xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_5714E6BE53BB8BD0B931CD06247FB282" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_7A5C15244B12B7585E2AEABA572C4D3A_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_7A5C15244B12B7585E2AEABA572C4D3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Cash Flows [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_7A5C15244B12B7585E2AEABA572C4D3A" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_StatementTable_44356267B3407E654D01EABA572C3F20_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_44356267B3407E654D01EABA572C3F20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Statement [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_44356267B3407E654D01EABA572C3F20" xlink:type="locator"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_1DDBF9057C3845A433F1EABA5730D016" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_1DDBF9057C3845A433F1EABA5730D016" xlink:to="lab_us-gaap_ProfitLoss_1DDBF9057C3845A433F1EABA5730D016" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Adjustments to reconcile net income (loss) to net cash provided by operating activities: </link:label> |
| | <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_69736DC353718192AE31EABA57308571" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion, Net </link:label> |
| | <link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE_label_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Depreciation, Amortization and Accretion, Net </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE" xlink:to="lab_us-gaap_DepreciationAmortizationAndAccretionNet_90F7ECDD6C578520D98CEABA57302DFE" xlink:type="arc"/> |
| | <link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81_terseLabel_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization Of Deferred Financing Costs And Other Noncash Interest </link:label> |
| | <link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81_label_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization Of Deferred Financing Costs And Other Noncash Interest </link:label> |
| | <link:label id="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81_documentation_en-US" xlink:label="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> The components of interest expense representing the non-cash expenses against earnings in the period including amortization of deferred financing costs, interest rate swaps, adjustments on long-term debt and other non-cash interest. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest" xlink:label="loc_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:to="lab_gsv_AmortizationOfDeferredFinancingCostsAndOtherNoncashInterest_B983C7B287B488271865EABA6685BF81" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AmortizationOfFinancingCosts_96763879FFBDBAD6183CEABA57309252_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_96763879FFBDBAD6183CEABA57309252" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of deferred financing costs </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_96763879FFBDBAD6183CEABA57309252" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfFinancingCosts_96763879FFBDBAD6183CEABA57309252" xlink:to="lab_us-gaap_AmortizationOfFinancingCosts_96763879FFBDBAD6183CEABA57309252" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166_terseLabel_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Asset write-down charges </link:label> |
| | <link:label id="lab_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166_label_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Asset Impairment Charges </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166" xlink:to="lab_us-gaap_AssetImpairmentCharges_5356370B54BD31DDF162EABA57301166" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589_terseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Extinguishment of Debt </link:label> |
| | <link:label id="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589_label_en-US" xlink:label="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Gain (Loss) on Extinguishment of Debt </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589" xlink:to="lab_us-gaap_GainsLossesOnExtinguishmentOfDebt_06C82A719ACC33233519EABA57304589" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Changes in assets and liabilities: </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Operating Capital [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_A3D6C7DAA93FE7F114E8EABA5730E423" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in accrued interest </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Interest Payable, Net </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_FD3C2F54788C7A4C2B70EABA57307CF0" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in accounts payable </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Accounts Payable, Trade </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableTrade" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayableTrade_96E3CE38A7A04448246EEABA57305753" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (decrease) in other liabilities </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Liabilities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_708967B8DE0B1C8F6499EABA57309537" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US"> Decrease (increase) in receivables </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Receivables </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF" xlink:to="lab_us-gaap_IncreaseDecreaseInReceivables_A2709FE83009A2FEF7B4EABA5730B1BF" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Decrease (increase) in other assets </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_34280DDD675FD42BEAF0EABA5730DC33" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) operating activities </link:label> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_84D15623587E6D1F74B1EABA57307AFA" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows from investing activities: </link:label> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_6E4C88124F7B0804837CEABA57308A94" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Capital expenditures(b) </link:label> |
| | <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Productive Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7" xlink:to="lab_us-gaap_PaymentsToAcquireProductiveAssets_8436F655638B03A8E60EEABA57303AF7" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) investing activities </link:label> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_F865331C747F66FC3481EABA5730782B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash flows from financing activities: </link:label> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_A2EA03132079B969082AEABA57340A1A" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21_terseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Repayments of Other Long-term Debt </link:label> |
| | <link:label id="lab_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Repayments of Other Long-term Debt </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfOtherLongTermDebt" xlink:label="loc_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21" xlink:to="lab_us-gaap_RepaymentsOfOtherLongTermDebt_61554512C244CB6CA929EABA57343D21" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) Due from Affiliates </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) Due from Affiliates </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseDueFromAffiliates" xlink:label="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349" xlink:to="lab_us-gaap_IncreaseDecreaseDueFromAffiliates_3E257918CB113E15BFBBEABA5734D349" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net cash provided by (used for) financing activities </link:label> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_89B4B954552A15414208EABA57348603" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB_totalLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net increase (decrease) in cash and cash equivalents </link:label> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Period Increase (Decrease) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_5E7711A9102B20EC8D35EABA5734F7AB" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A0385F51A39509FE637EABA57346717_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A0385F51A39509FE637EABA57346717" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents at end of period </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A0385F51A39509FE637EABA57346717" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A0385F51A39509FE637EABA57346717" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_9A0385F51A39509FE637EABA57346717" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_68AF0DB01BA8D2ABC67FFD658BF3D9DA_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_BF55879A5FA4528E9947CE30139A432B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_BF55879A5FA4528E9947CE30139A432B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_BF55879A5FA4528E9947CE30139A432B" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_BF55879A5FA4528E9947CE30139A432B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E38476D8F89073321B7FD658BF3636C_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_719BC883D3AF594DAF462A3B9F654D9B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies </link:label> |
| | <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E38476D8F89073321B7FD658BF3636C_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_719BC883D3AF594DAF462A3B9F654D9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Commitments and Contingencies Disclosure [Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_719BC883D3AF594DAF462A3B9F654D9B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_719BC883D3AF594DAF462A3B9F654D9B" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_719BC883D3AF594DAF462A3B9F654D9B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncomeStatementAbstract_290B91474F63D05C4185EAC570FADB6B_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_290B91474F63D05C4185EAC570FADB6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Statement [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_290B91474F63D05C4185EAC570FADB6B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_290B91474F63D05C4185EAC570FADB6B" xlink:to="lab_us-gaap_IncomeStatementAbstract_290B91474F63D05C4185EAC570FADB6B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Site rental revenues: </link:label> |
| | <link:label id="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Leases, Income Statement, Lease Revenue </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasesIncomeStatementLeaseRevenue" xlink:label="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB" xlink:to="lab_us-gaap_OperatingLeasesIncomeStatementLeaseRevenue_1BFE99F077C4484E0CD8EAC570FA21CB" xlink:type="arc"/> |
| | <link:label id="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8_terseLabel_en-US" xlink:label="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site Rental Revenues </link:label> |
| | <link:label id="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8_label_en-US" xlink:label="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Site Rental Revenues </link:label> |
| | <link:label id="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8_documentation_en-US" xlink:label="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Contains revenue from accounted under both Topic 606 (Finance leases) and Topic 842 (Operating leases) </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_SiteRentalRevenues" xlink:label="loc_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:to="lab_gsv_SiteRentalRevenues_1CA53075D40C1BC3D3D2EAC570FAA6F8" xlink:type="arc"/> |
| | <link:label id="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046_terseLabel_en-US" xlink:label="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Amortization of service revenues </link:label> |
| | <link:label id="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046_label_en-US" xlink:label="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Amortization of service revenues </link:label> |
| | <link:label id="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046_documentation_en-US" xlink:label="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amortization of service revenues </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_Amortizationofservicerevenues" xlink:label="loc_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:to="lab_gsv_Amortizationofservicerevenues_9BC040AB6304FDFE4A31EAC570FA7046" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B_terseLabel_en-US" xlink:label="lab_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Revenues </link:label> |
| | <link:label id="lab_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B_label_en-US" xlink:label="lab_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Revenues </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B" xlink:to="lab_us-gaap_Revenues_3B822088223506E3A30AEAC570FADA9B" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating expenses: </link:label> |
| | <link:label id="lab_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Expenses [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B" xlink:to="lab_us-gaap_OperatingExpensesAbstract_359AE3F183D43D4B9AE2EAC570FADF3B" xlink:type="arc"/> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4_terseLabel_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental cost of operations—third parties(b) </link:label> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4_label_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment, Third Party </link:label> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4_documentation_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Costs incurred with third parties that are directly related to generating revenues from leased and rented property or equipment. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty" xlink:label="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:to="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentThirdParty_7CD3705F3E62595213B1EAC570FAA3C4" xlink:type="arc"/> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB_terseLabel_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ground rent expenses—related parties </link:label> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB_label_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment, Related Party </link:label> |
| | <link:label id="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB_documentation_en-US" xlink:label="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Costs incurred with related parties that are directly related to generating revenues from leased and rented property or equipment. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty" xlink:label="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:to="lab_gsv_DirectCostsOfLeasedAndRentedPropertyOrEquipmentRelatedParty_E0FF4EFED9783E75902BEAC570FA05AB" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB_terseLabel_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Site rental cost of operations—total(b) </link:label> |
| | <link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB_label_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Direct Costs of Leased and Rented Property or Equipment </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment" xlink:label="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB" xlink:to="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_D19FA66A42E388BBFE44EAC570FADBDB" xlink:type="arc"/> |
| | <link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB_verboseLabel_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Management fee—related party </link:label> |
| | <link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB_label_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Management Fee Expense Related Party </link:label> |
| | <link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB_documentation_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Amount of expenses charged by affiliate related to the management services to maintain, market, operate, manage and administer the towers. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ManagementFeeExpenseRelatedParty" xlink:label="loc_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:to="lab_gsv_ManagementFeeExpenseRelatedParty_B882A1C93A1CDA484748EAC570FE38CB" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AssetImpairmentCharges_B1F4F1F935446FA0CA05EAC570FEAD26_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetImpairmentCharges_B1F4F1F935446FA0CA05EAC570FEAD26" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Asset write-down charges </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_B1F4F1F935446FA0CA05EAC570FEAD26" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetImpairmentCharges_B1F4F1F935446FA0CA05EAC570FEAD26" xlink:to="lab_us-gaap_AssetImpairmentCharges_B1F4F1F935446FA0CA05EAC570FEAD26" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DepreciationAmortizationAndAccretionNet_0DAACB90EC56B580B53CEAC570FEF15E_verboseLabel_en-US" xlink:label="lab_us-gaap_DepreciationAmortizationAndAccretionNet_0DAACB90EC56B580B53CEAC570FEF15E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Depreciation, amortization and accretion </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="loc_us-gaap_DepreciationAmortizationAndAccretionNet_0DAACB90EC56B580B53CEAC570FEF15E" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationAmortizationAndAccretionNet_0DAACB90EC56B580B53CEAC570FEF15E" xlink:to="lab_us-gaap_DepreciationAmortizationAndAccretionNet_0DAACB90EC56B580B53CEAC570FEF15E" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0_totalLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Total operating expenses </link:label> |
| | <link:label id="lab_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0_label_en-US" xlink:label="lab_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Costs and Expenses </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0" xlink:to="lab_us-gaap_CostsAndExpenses_CB687E4597DC2D130213EAC570FEE7D0" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Operating income (loss) </link:label> |
| | <link:label id="lab_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Operating Income (Loss) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB" xlink:to="lab_us-gaap_OperatingIncomeLoss_30B02C7AB62F9729DA33EAC570FEAFDB" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_InterestExpenseDebt_66BE17787403AD2C6D2DEAC570FE7A42_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt_66BE17787403AD2C6D2DEAC570FE7A42" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US"> Interest expense and amortization of deferred financing costs </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_66BE17787403AD2C6D2DEAC570FE7A42" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDebt_66BE17787403AD2C6D2DEAC570FE7A42" xlink:to="lab_us-gaap_InterestExpenseDebt_66BE17787403AD2C6D2DEAC570FE7A42" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Other income (expense) </link:label> |
| | <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Nonoperating Income (Expense) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpense_115BBC8E3F93A697B246EAC570FEC737" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Income (loss) before income taxes </link:label> |
| | <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_E2CE00EC5E89060BCCD5EAC570FE22EE" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Benefit (provision) for income taxes </link:label> |
| | <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Income Tax Expense (Benefit) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_38E77899900043D5D7D6EAC570FEFD26" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ProfitLoss_76DBC553640442933AB1EAC570FE7C84_totalLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_76DBC553640442933AB1EAC570FE7C84" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US"> Net income (loss) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_76DBC553640442933AB1EAC570FE7C84" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_76DBC553640442933AB1EAC570FE7C84" xlink:to="lab_us-gaap_ProfitLoss_76DBC553640442933AB1EAC570FE7C84" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_FCD41428C4395575C252FD658C4EEDE8_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract_5B1CEDF24E3959EC971EE332E409740E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_5B1CEDF24E3959EC971EE332E409740E" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_5B1CEDF24E3959EC971EE332E409740E" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract_5B1CEDF24E3959EC971EE332E409740E" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_166071C17F8AAA8EF05DFD658C4E9DA8_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_D5600A1968DD5C9AB81AAB0B0463F3A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Estimated Fair Values and Carrying Amounts of Assets and Liabilities </link:label> |
| | <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_166071C17F8AAA8EF05DFD658C4E9DA8_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_D5600A1968DD5C9AB81AAB0B0463F3A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value, by Balance Sheet Grouping [Table Text Block] </link:label> |
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| | <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1_terseLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents </link:label> |
| | <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_C2137CA5CE66E9972887EABD122D75A1" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2290148ED2A08CBE9137EABD122DDC73_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2290148ED2A08CBE9137EABD122DDC73" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, carrying value </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2290148ED2A08CBE9137EABD122DDC73" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2290148ED2A08CBE9137EABD122DDC73" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2290148ED2A08CBE9137EABD122DDC73" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Fair Value Disclosure </link:label> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Fair Value Disclosure </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B" xlink:to="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_521B37C498183FE9E1DBEABD24ADCC7B" xlink:type="arc"/> |
| | <link:label id="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929_terseLabel_en-US" xlink:label="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, Fair Value </link:label> |
| | <link:label id="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929_label_en-US" xlink:label="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, Fair Value </link:label> |
| | <link:label id="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929_documentation_en-US" xlink:label="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Cash and cash equivalents, Fair Value </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_CashandcashequivalentsFairValue" xlink:label="loc_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:to="lab_gsv_CashandcashequivalentsFairValue_650DAD48CB58640F1462EABD122D4929" xlink:type="arc"/> |
| | <link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804_terseLabel_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt And Capital Lease Obligations Fair Value Disclosures </link:label> |
| | <link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804_label_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt And Capital Lease Obligations Fair Value Disclosures </link:label> |
| | <link:label id="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804_documentation_en-US" xlink:label="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Sum of the fair values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures" xlink:label="loc_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:to="lab_gsv_DebtAndCapitalLeaseObligationsFairValueDisclosures_01B561C5DFB03EC49BB6EABD24ED4804" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt, fair value </link:label> |
| | <link:label id="lab_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719_label_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Fair Value </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719" xlink:to="lab_us-gaap_LongTermDebtFairValue_79174B102A83E893189FEABD122D2719" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt </link:label> |
| | <link:label id="lab_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B_label_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Lease Obligation </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtAndCapitalLeaseObligations" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B" xlink:to="lab_us-gaap_DebtAndCapitalLeaseObligations_89AABAB7ADF29DF59E6AEABD122DF87B" xlink:type="arc"/> |
| | <link:label id="lab_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9_terseLabel_en-US" xlink:label="lab_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Cash Flow Statement [Table] </link:label> |
| | <link:label id="lab_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9_label_en-US" xlink:label="lab_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Cash Flow Statement [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedCashFlowStatementTable" xlink:label="loc_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9" xlink:to="lab_srt_CondensedCashFlowStatementTable_62840B0042A3D5B85E71CCD2668130E9" xlink:type="arc"/> |
| | <link:label id="lab_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770_terseLabel_en-US" xlink:label="lab_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Previously Reported [Member] </link:label> |
| | <link:label id="lab_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770_label_en-US" xlink:label="lab_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Previously Reported [Member] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioPreviouslyReportedMember" xlink:label="loc_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770" xlink:to="lab_srt_ScenarioPreviouslyReportedMember_8C63FCA09507630B724DCCEABBF07770" xlink:type="arc"/> |
| | <link:label id="lab_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289_terseLabel_en-US" xlink:label="lab_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Restatement Adjustment [Member] </link:label> |
| | <link:label id="lab_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289_label_en-US" xlink:label="lab_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Restatement Adjustment [Member] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RestatementAdjustmentMember" xlink:label="loc_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289" xlink:to="lab_srt_RestatementAdjustmentMember_928FC06699CAC4766C91CCE9B7DD7289" xlink:type="arc"/> |
| | <link:label id="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F_terseLabel_en-US" xlink:label="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Adjustment [Member] </link:label> |
| | <link:label id="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F_label_en-US" xlink:label="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Other Adjustment [Member] </link:label> |
| | <link:label id="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F_documentation_en-US" xlink:label="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Other Adjustment [Member] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_OtherAdjustmentMember" xlink:label="loc_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:to="lab_gsv_OtherAdjustmentMember_1AA81043BF6F0B99B4D1CCECC43A7D9F" xlink:type="arc"/> |
| | <link:label id="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92_terseLabel_en-US" xlink:label="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Cash Flow Statements, Captions [Line Items] </link:label> |
| | <link:label id="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92_label_en-US" xlink:label="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Cash Flow Statements, Captions [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedCashFlowStatementsCaptionsLineItems" xlink:label="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92" xlink:to="lab_srt_CondensedCashFlowStatementsCaptionsLineItems_23B61C100258B5B165A6CCD266824C92" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ProfitLoss_3B755A16065F9C33C143CCDEB88FA151_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss_3B755A16065F9C33C143CCDEB88FA151" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net income (loss) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_3B755A16065F9C33C143CCDEB88FA151" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss_3B755A16065F9C33C143CCDEB88FA151" xlink:to="lab_us-gaap_ProfitLoss_3B755A16065F9C33C143CCDEB88FA151" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_C3A91889017CA318CB6ECCDEC0708202_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_C3A91889017CA318CB6ECCDEC0708202" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Receivables </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_C3A91889017CA318CB6ECCDEC0708202" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_FFBCB431461ACA171017CCDEC16C05D2_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_FFBCB431461ACA171017CCDEC16C05D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Other Operating Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_FFBCB431461ACA171017CCDEC16C05D2" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_71328066FF284D9671F2CCDEC2778BB5_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_71328066FF284D9671F2CCDEC2778BB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_71328066FF284D9671F2CCDEC2778BB5" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_B33473D54F437F8F5B09CCDEC3FFB713_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets_B33473D54F437F8F5B09CCDEC3FFB713" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Payments to Acquire Productive Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_B33473D54F437F8F5B09CCDEC3FFB713" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_BE3BB571628FE2D5AF2CCCDEC4FECAAE_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_BE3BB571628FE2D5AF2CCCDEC4FECAAE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_BE3BB571628FE2D5AF2CCCDEC4FECAAE" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_BE3BB571628FE2D5AF2CCCDEC4FECAAE" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_BE3BB571628FE2D5AF2CCCDEC4FECAAE" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_1E32ADDFD17A1DE0D04ACCDEC8B92E3E_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_1E32ADDFD17A1DE0D04ACCDEC8B92E3E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_1E32ADDFD17A1DE0D04ACCDEC8B92E3E" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_1E32ADDFD17A1DE0D04ACCDEC8B92E3E" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_1E32ADDFD17A1DE0D04ACCDEC8B92E3E" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_23C0F07AC6AFAD32F013CCDECA203D49_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_23C0F07AC6AFAD32F013CCDECA203D49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Cash and Cash Equivalents, Period Increase (Decrease) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_23C0F07AC6AFAD32F013CCDECA203D49" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_B0258B63CBE6EB6368B7CCF9C2D45EA0_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract_B0258B63CBE6EB6368B7CCF9C2D45EA0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Statement of Stockholders' Equity [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_B0258B63CBE6EB6368B7CCF9C2D45EA0" xlink:type="locator"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_854A1DEC13F19AB4F012CCF9C2D4E741" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_EquityComponentDomain_9C54465D734653167469CCF9C2D40959_verboseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_9C54465D734653167469CCF9C2D40959" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Members' Equity Total [Domain] </link:label> |
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| | <link:label id="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F_verboseLabel_en-US" xlink:label="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Members' Equity [Member] </link:label> |
| | <link:label id="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F_label_en-US" xlink:label="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Members' Capital [Member] </link:label> |
| | <link:label id="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F_documentation_en-US" xlink:label="lab_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Members' Capital [Member] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_MembersCapitalMember" xlink:label="loc_gsv_MembersCapitalMember_FC0AA5E50D1F77F23200CCF9C2D43C9F" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_RetainedEarningsMember_4F7A74BA507B2BF505C6CCF9C2D4B0B6_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_4F7A74BA507B2BF505C6CCF9C2D4B0B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Earnings (Deficit) [Member] </link:label> |
| | <link:label id="lab_us-gaap_RetainedEarningsMember_4F7A74BA507B2BF505C6CCF9C2D4B0B6_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_4F7A74BA507B2BF505C6CCF9C2D4B0B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retained Earnings [Member] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_4F7A74BA507B2BF505C6CCF9C2D4B0B6" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B5DAB1971F31194567D7CCF9C2D4E367_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B5DAB1971F31194567D7CCF9C2D4E367" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Equity [Roll Forward] </link:label> |
| | <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B5DAB1971F31194567D7CCF9C2D4E367_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B5DAB1971F31194567D7CCF9C2D4E367" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Increase (Decrease) in Stockholders' Equity [Roll Forward] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_B5DAB1971F31194567D7CCF9C2D4E367" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_MembersEquity_3AA373B8FE101F1AEEE3CCF9C2D45635_periodStartLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_3AA373B8FE101F1AEEE3CCF9C2D45635" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US"> Balance, beginning </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_3AA373B8FE101F1AEEE3CCF9C2D45635" xlink:type="locator"/> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_DA93CEF4C6FB0461C9F9CCF9C2D41FC9" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_57E177CF0734DA761422FD658B2DB5D9_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable_C24B0A8A0A7A5B9BBAA6651F676D5644" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Table] </link:label> |
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| | <link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_3D35D83DC2AEA49F3927FD658B2F65F0_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_535B59C849AA53DB8C75BA4EA0D71D0D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label> |
| | <link:label id="lab_us-gaap_LesseeLeaseDescriptionLineItems_3D35D83DC2AEA49F3927FD658B2F65F0_label_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionLineItems_535B59C849AA53DB8C75BA4EA0D71D0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Lease, Description [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_535B59C849AA53DB8C75BA4EA0D71D0D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_535B59C849AA53DB8C75BA4EA0D71D0D" xlink:to="lab_us-gaap_LesseeLeaseDescriptionLineItems_535B59C849AA53DB8C75BA4EA0D71D0D" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LesseeOperatingLeaseTermOfContract_798A606FEC7BAB9B5854FD658B2F8049_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseTermOfContract_EDFA2F5BB9FB543DA5A7B7B2744A65A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Ground Lease Agreement, Initial Term </link:label> |
| | <link:label id="lab_us-gaap_LesseeOperatingLeaseTermOfContract_798A606FEC7BAB9B5854FD658B2F8049_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseTermOfContract_EDFA2F5BB9FB543DA5A7B7B2744A65A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Lessee, Operating Lease, Term of Contract </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseTermOfContract" xlink:label="loc_us-gaap_LesseeOperatingLeaseTermOfContract_EDFA2F5BB9FB543DA5A7B7B2744A65A1" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseTermOfContract_EDFA2F5BB9FB543DA5A7B7B2744A65A1" xlink:to="lab_us-gaap_LesseeOperatingLeaseTermOfContract_EDFA2F5BB9FB543DA5A7B7B2744A65A1" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DeferredFinanceCostsNet_31FD90BE10BC357EBA0DFD658B2F015B_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_E9BD5D1512315F23BFCA0BB518EC838D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Deferred Finance Costs, Net </link:label> |
| | <link:label id="lab_us-gaap_DeferredFinanceCostsNet_31FD90BE10BC357EBA0DFD658B2F015B_label_en-US" xlink:label="lab_us-gaap_DeferredFinanceCostsNet_E9BD5D1512315F23BFCA0BB518EC838D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Issuance Costs, Net </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_E9BD5D1512315F23BFCA0BB518EC838D" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFinanceCostsNet_E9BD5D1512315F23BFCA0BB518EC838D" xlink:to="lab_us-gaap_DeferredFinanceCostsNet_E9BD5D1512315F23BFCA0BB518EC838D" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_1D2A6CF96CF0C81FF1B7FD658B2A6316_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_53B2E3EF8D1550E0B15615E40281904F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures </link:label> |
| | <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_1D2A6CF96CF0C81FF1B7FD658B2A6316_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_53B2E3EF8D1550E0B15615E40281904F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Fair Value Disclosures [Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_53B2E3EF8D1550E0B15615E40281904F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_53B2E3EF8D1550E0B15615E40281904F" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_53B2E3EF8D1550E0B15615E40281904F" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTable_0E25160BB47790FFF14EFD658B1FAD28_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTable_5E205BC0A97A5C1B998CFBAD8DF6A355" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt [Table] </link:label> |
| | <link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTable_0E25160BB47790FFF14EFD658B1FAD28_label_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTable_5E205BC0A97A5C1B998CFBAD8DF6A355" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfExtinguishmentOfDebtTable" xlink:label="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTable_5E205BC0A97A5C1B998CFBAD8DF6A355" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTable_5E205BC0A97A5C1B998CFBAD8DF6A355" xlink:to="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTable_5E205BC0A97A5C1B998CFBAD8DF6A355" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_LongtermDebtTypeAxis_B00E147DDFBBEAE7606EFD658B20D1A0_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_5DF1C1ED3820593FAA4D9889246D3640" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label> |
| | <link:label id="lab_us-gaap_LongtermDebtTypeAxis_B00E147DDFBBEAE7606EFD658B20D1A0_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_5DF1C1ED3820593FAA4D9889246D3640" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Axis] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_5DF1C1ED3820593FAA4D9889246D3640" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_LongtermDebtTypeDomain_3F9FE97E8F0BBDA331E8FD658B208A19_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_F995DA9B567D58DAB07857030ACBB179" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label> |
| | <link:label id="lab_us-gaap_LongtermDebtTypeDomain_3F9FE97E8F0BBDA331E8FD658B208A19_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_F995DA9B567D58DAB07857030ACBB179" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Long-term Debt, Type [Domain] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_F995DA9B567D58DAB07857030ACBB179" xlink:type="locator"/> |
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| | <link:label id="lab_gsv_September2016SeniorUnsecuredNotesMember_C7323B843154C3AB11B2FD658B211291_terseLabel_en-US" xlink:label="lab_gsv_September2016SeniorUnsecuredNotesMember_2BF62D8E78E95415AD177E303B98D6C9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> September 2016 Senior Unsecured Notes [Member] </link:label> |
| | <link:label id="lab_gsv_September2016SeniorUnsecuredNotesMember_C7323B843154C3AB11B2FD658B211291_label_en-US" xlink:label="lab_gsv_September2016SeniorUnsecuredNotesMember_2BF62D8E78E95415AD177E303B98D6C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> September 2016 Senior Unsecured Notes [Member] </link:label> |
| | <link:label id="lab_gsv_September2016SeniorUnsecuredNotesMember_C7323B843154C3AB11B2FD658B211291_documentation_en-US" xlink:label="lab_gsv_September2016SeniorUnsecuredNotesMember_2BF62D8E78E95415AD177E303B98D6C9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> September 2016 Senior Unsecured Notes [Member] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_September2016SeniorUnsecuredNotesMember" xlink:label="loc_gsv_September2016SeniorUnsecuredNotesMember_2BF62D8E78E95415AD177E303B98D6C9" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtLineItems_9693E48C2D21997002A9FD658B214EB0_terseLabel_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtLineItems_20CCC5C61BCF514CA9B854FF0DA18E9A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt [Line Items] </link:label> |
| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtLineItems_9693E48C2D21997002A9FD658B214EB0_label_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtLineItems_20CCC5C61BCF514CA9B854FF0DA18E9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ExtinguishmentOfDebtLineItems" xlink:label="loc_us-gaap_ExtinguishmentOfDebtLineItems_20CCC5C61BCF514CA9B854FF0DA18E9A" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_99981B9923038CF0BBADFD658B2179A7_terseLabel_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_5FCECD8DA71156338BE37721C4F7258E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt and Other Obligations </link:label> |
| | <link:label id="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_99981B9923038CF0BBADFD658B2179A7_label_en-US" xlink:label="lab_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_5FCECD8DA71156338BE37721C4F7258E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt and Capital Leases Disclosures [Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock" xlink:label="loc_us-gaap_DebtAndCapitalLeasesDisclosuresTextBlock_5FCECD8DA71156338BE37721C4F7258E" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_842203642DDCF7B7DCA9FD658C4B6273_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract_6DDD76F05A2455DFA44CF60438D36D79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transactions [Abstract] </link:label> |
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| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ContractualTermsAxis" xlink:label="loc_gsv_ContractualTermsAxis_FD82FCBCB58B55879B8046545FA78C9F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ContractualTermsAxis_FD82FCBCB58B55879B8046545FA78C9F" xlink:to="lab_gsv_ContractualTermsAxis_FD82FCBCB58B55879B8046545FA78C9F" xlink:type="arc"/> |
| | <link:label id="lab_gsv_ContractualTermsDomain_9457494965893CEA3E03FD658C1A5D16_terseLabel_en-US" xlink:label="lab_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Domain] </link:label> |
| | <link:label id="lab_gsv_ContractualTermsDomain_9457494965893CEA3E03FD658C1A5D16_label_en-US" xlink:label="lab_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Domain] </link:label> |
| | <link:label id="lab_gsv_ContractualTermsDomain_9457494965893CEA3E03FD658C1A5D16_documentation_en-US" xlink:label="lab_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Domain] for Contractual Terms [Axis] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ContractualTermsDomain" xlink:label="loc_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:to="lab_gsv_ContractualTermsDomain_A1523974D370534C91B4028DCECB60C8" xlink:type="arc"/> |
| | <link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_0564F946DFE4B3B67B3FFD658C1A6B52_terseLabel_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Sprint Master Lease Agreements [Member] </link:label> |
| | <link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_0564F946DFE4B3B67B3FFD658C1A6B52_label_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Master Lease Agreements [Member] </link:label> |
| | <link:label id="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_0564F946DFE4B3B67B3FFD658C1A6B52_documentation_en-US" xlink:label="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Leased or Operated Under Master Lease Agreements [Member] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember" xlink:label="loc_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:to="lab_gsv_LeasedOrOperatedUnderMasterLeaseAgreementsMember_534B6C0049AE5E5F87C86D0269832377" xlink:type="arc"/> |
| | <link:label id="lab_gsv_ContractualTermsLineItems_123B167542BDC6211CA0FD658C1BFBC8_terseLabel_en-US" xlink:label="lab_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Line Items] </link:label> |
| | <link:label id="lab_gsv_ContractualTermsLineItems_123B167542BDC6211CA0FD658C1BFBC8_label_en-US" xlink:label="lab_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Contractual Terms [Line Items] </link:label> |
| | <link:label id="lab_gsv_ContractualTermsLineItems_123B167542BDC6211CA0FD658C1BFBC8_documentation_en-US" xlink:label="lab_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> [Line Items] for Contractual Terms [Table] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ContractualTermsLineItems" xlink:label="loc_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:to="lab_gsv_ContractualTermsLineItems_58F98A2AF1E05E3BB899C48B5E728661" xlink:type="arc"/> |
| | <link:label id="lab_gsv_TowerCountPercentage_AFA9919EA5435A17CB7BFD658C1B9A2F_verboseLabel_en-US" xlink:label="lab_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Site count as a percentage of total sites </link:label> |
| | <link:label id="lab_gsv_TowerCountPercentage_AFA9919EA5435A17CB7BFD658C1B9A2F_label_en-US" xlink:label="lab_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Tower Count Percentage </link:label> |
| | <link:label id="lab_gsv_TowerCountPercentage_AFA9919EA5435A17CB7BFD658C1B9A2F_documentation_en-US" xlink:label="lab_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the Company's tower count as a percentage of total towers. Inclusive of towers and other structures, such as rooftops. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_TowerCountPercentage" xlink:label="loc_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:to="lab_gsv_TowerCountPercentage_900BBF06F68F59FC9C83937A82C487AD" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtAxis_556A3A0454AC512B15B0FD658C565106_terseLabel_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAxis_862F8211BA6453758725400C08070476" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt [Axis] </link:label> |
| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtAxis_556A3A0454AC512B15B0FD658C565106_label_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAxis_862F8211BA6453758725400C08070476" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt [Axis] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ExtinguishmentOfDebtAxis" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAxis_862F8211BA6453758725400C08070476" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExtinguishmentOfDebtAxis_862F8211BA6453758725400C08070476" xlink:to="lab_us-gaap_ExtinguishmentOfDebtAxis_862F8211BA6453758725400C08070476" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtTypeDomain_731549F34926A0329871FD658C5B3C2C_terseLabel_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtTypeDomain_79D74EB19E435F0092B45318B5929368" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt, Type [Domain] </link:label> |
| | <link:label id="lab_us-gaap_ExtinguishmentOfDebtTypeDomain_731549F34926A0329871FD658C5B3C2C_label_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtTypeDomain_79D74EB19E435F0092B45318B5929368" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Extinguishment of Debt, Type [Domain] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ExtinguishmentOfDebtTypeDomain" xlink:label="loc_us-gaap_ExtinguishmentOfDebtTypeDomain_79D74EB19E435F0092B45318B5929368" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExtinguishmentOfDebtTypeDomain_79D74EB19E435F0092B45318B5929368" xlink:to="lab_us-gaap_ExtinguishmentOfDebtTypeDomain_79D74EB19E435F0092B45318B5929368" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_C8A8F5973702036DA17DFD658C5C719F_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_025D3186829855F79E6A93BDBCBB1E82" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt [Table Text Block] </link:label> |
| | <link:label id="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_C8A8F5973702036DA17DFD658C5C719F_label_en-US" xlink:label="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_025D3186829855F79E6A93BDBCBB1E82" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Extinguishment of Debt [Table Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock" xlink:label="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_025D3186829855F79E6A93BDBCBB1E82" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_025D3186829855F79E6A93BDBCBB1E82" xlink:to="lab_us-gaap_ScheduleOfExtinguishmentOfDebtTextBlock_025D3186829855F79E6A93BDBCBB1E82" xlink:type="arc"/> |
| | <link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_9E959C4A736737E0CF46FD658C5C1878_terseLabel_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Components of Interest Expense and Amortization of Deferred Financing Costs </link:label> |
| | <link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_9E959C4A736737E0CF46FD658C5C1878_label_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule Of Interest Expense And Amortization Of Deferred Financing Costs [Text Block] </link:label> |
| | <link:label id="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_9E959C4A736737E0CF46FD658C5C1878_documentation_en-US" xlink:label="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Schedule of interest expense and amortization of deferred financing costs. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock" xlink:label="loc_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:to="lab_gsv_ScheduleOfInterestExpenseAndAmortizationOfDeferredFinancingCostsTextBlock_90C9BC861628568D955B4F3DFE201943" xlink:type="arc"/> |
| | <link:label id="lab_gsv_AccumulatedDepreciationAbstract_A163E42924F854F7C5B4FD658B23AF42_label_en-US" xlink:label="lab_gsv_AccumulatedDepreciationAbstract_2CA53CBCAD51547381CFAF0E43E0B7C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation [Abstract] </link:label> |
| | <link:label id="lab_gsv_AccumulatedDepreciationAbstract_A163E42924F854F7C5B4FD658B23AF42_documentation_en-US" xlink:label="lab_gsv_AccumulatedDepreciationAbstract_2CA53CBCAD51547381CFAF0E43E0B7C5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation [Abstract] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_AccumulatedDepreciationAbstract" xlink:label="loc_gsv_AccumulatedDepreciationAbstract_2CA53CBCAD51547381CFAF0E43E0B7C5" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_AccumulatedDepreciationAbstract_2CA53CBCAD51547381CFAF0E43E0B7C5" xlink:to="lab_gsv_AccumulatedDepreciationAbstract_2CA53CBCAD51547381CFAF0E43E0B7C5" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_9D013E38563C032CBD95FD658B23EB30_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7862A0132A445D2FB73F58FF7E1E6767" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </link:label> |
| | <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_9D013E38563C032CBD95FD658B23EB30_label_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7862A0132A445D2FB73F58FF7E1E6767" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_7862A0132A445D2FB73F58FF7E1E6767" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label> |
| | <link:label id="lab_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Long-term Debt Instruments [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50" xlink:to="lab_us-gaap_DebtInstrumentTable_8E9FB8F3F87A76FA2D94EAD432E6AB50" xlink:type="arc"/> |
| | <link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34_terseLabel_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label> |
| | <link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34_label_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label> |
| | <link:label id="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34_documentation_en-US" xlink:label="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> 2012 secured notes tranche B [Member] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_A2012SecuredNotesTrancheBMember" xlink:label="loc_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:to="lab_gsv_A2012SecuredNotesTrancheBMember_B663778F71C1B74C3E83EAD432EA3A34" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label> |
| | <link:label id="lab_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E" xlink:to="lab_us-gaap_DebtInstrumentLineItems_4162FE7600920B37F735EAD432EA566E" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Stated interest rate </link:label> |
| | <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_26074665F4276ABC5080EAD432EA1025" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label> |
| | <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Schedule of Related Party Transactions, by Related Party [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD" xlink:to="lab_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_B69B34C557ACFEAEABF5EAA6B66976CD" xlink:type="arc"/> |
| | <link:label id="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F_terseLabel_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Net Equity contribution (distribution) from parent [Member] </link:label> |
| | <link:label id="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F_label_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Net Equity contribution from parent [Member] </link:label> |
| | <link:label id="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F_documentation_en-US" xlink:label="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Net Equity contribution from parent </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_NetEquitycontributionfromparentMember" xlink:label="loc_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:to="lab_gsv_NetEquitycontributionfromparentMember_C5B816E0DF30BDB96EB6EAA6B66AF22F" xlink:type="arc"/> |
| | <link:label id="lab_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053_verboseLabel_en-US" xlink:label="lab_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label> |
| | <link:label id="lab_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053_label_en-US" xlink:label="lab_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Affiliated Entity [Member] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AffiliatedEntityMember" xlink:label="loc_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053" xlink:to="lab_srt_AffiliatedEntityMember_B0AC275D645555D3900AEAA6B66D5053" xlink:type="arc"/> |
| | <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_5C73660F74772CE7631EEAA6B66E324E_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_5C73660F74772CE7631EEAA6B66E324E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label> |
| | <link:label id="lab_us-gaap_RelatedPartyTransactionLineItems_5C73660F74772CE7631EEAA6B66E324E_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionLineItems_5C73660F74772CE7631EEAA6B66E324E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RelatedPartyTransactionLineItems" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_5C73660F74772CE7631EEAA6B66E324E" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_PropertyManagementFeePercentFee_A5C8A3672D2CBE652B9CEAA6B66E5CB6_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyManagementFeePercentFee_A5C8A3672D2CBE652B9CEAA6B66E5CB6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Management Fee, Percent Fee </link:label> |
| | <link:label id="lab_us-gaap_PropertyManagementFeePercentFee_A5C8A3672D2CBE652B9CEAA6B66E5CB6_label_en-US" xlink:label="lab_us-gaap_PropertyManagementFeePercentFee_A5C8A3672D2CBE652B9CEAA6B66E5CB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Property Management Fee, Percent Fee </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyManagementFeePercentFee" xlink:label="loc_us-gaap_PropertyManagementFeePercentFee_A5C8A3672D2CBE652B9CEAA6B66E5CB6" xlink:type="locator"/> |
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| | <link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6_terseLabel_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label> |
| | <link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6_label_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label> |
| | <link:label id="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6_documentation_en-US" xlink:label="lab_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Related Party Transaction, Percentage of Towers Where Land is Owned by Related Party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty" xlink:label="loc_gsv_RelatedPartyTransactionPercentageofTowersWhereLandisOwnedbyRelatedParty_F9419E0CC4C115AEB546EAA6B66F5BC6" xlink:type="locator"/> |
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| | <link:label id="lab_gsv_RetirementofLongTermObligationsAbstract_BA6832B804A013B00CDCFD658B14F4CC_label_en-US" xlink:label="lab_gsv_RetirementofLongTermObligationsAbstract_F5568270BF76559EAB148E13B79FB187" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Retirement of Long Term Obligations [Abstract] </link:label> |
| | <link:label id="lab_gsv_RetirementofLongTermObligationsAbstract_BA6832B804A013B00CDCFD658B14F4CC_documentation_en-US" xlink:label="lab_gsv_RetirementofLongTermObligationsAbstract_F5568270BF76559EAB148E13B79FB187" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Retirement of Long Term Obligations [Abstract] </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_RetirementofLongTermObligationsAbstract" xlink:label="loc_gsv_RetirementofLongTermObligationsAbstract_F5568270BF76559EAB148E13B79FB187" xlink:type="locator"/> |
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| | <link:label id="lab_srt_CondensedIncomeStatementTable_EAEFD99307D8B9900D75EABBA1094943_terseLabel_en-US" xlink:label="lab_srt_CondensedIncomeStatementTable_EAEFD99307D8B9900D75EABBA1094943" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Income Statement [Table] </link:label> |
| | <link:label id="lab_srt_CondensedIncomeStatementTable_EAEFD99307D8B9900D75EABBA1094943_label_en-US" xlink:label="lab_srt_CondensedIncomeStatementTable_EAEFD99307D8B9900D75EABBA1094943" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Income Statement [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedIncomeStatementTable" xlink:label="loc_srt_CondensedIncomeStatementTable_EAEFD99307D8B9900D75EABBA1094943" xlink:type="locator"/> |
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| | <link:label id="lab_srt_CondensedIncomeStatementsCaptionsLineItems_86BDE88C32FDAA3DE70BEABBA10DD4EF_terseLabel_en-US" xlink:label="lab_srt_CondensedIncomeStatementsCaptionsLineItems_86BDE88C32FDAA3DE70BEABBA10DD4EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Income Statements, Captions [Line Items] </link:label> |
| | <link:label id="lab_srt_CondensedIncomeStatementsCaptionsLineItems_86BDE88C32FDAA3DE70BEABBA10DD4EF_label_en-US" xlink:label="lab_srt_CondensedIncomeStatementsCaptionsLineItems_86BDE88C32FDAA3DE70BEABBA10DD4EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Income Statements, Captions [Line Items] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedIncomeStatementsCaptionsLineItems" xlink:label="loc_srt_CondensedIncomeStatementsCaptionsLineItems_86BDE88C32FDAA3DE70BEABBA10DD4EF" xlink:type="locator"/> |
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| | <link:label id="lab_gsv_ManagementFeeExpenseRelatedParty_D3AB925B9F17EEDE7E3AEABBA10D3C61_terseLabel_en-US" xlink:label="lab_gsv_ManagementFeeExpenseRelatedParty_D3AB925B9F17EEDE7E3AEABBA10D3C61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Management Fee Expense Related Party </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_ManagementFeeExpenseRelatedParty" xlink:label="loc_gsv_ManagementFeeExpenseRelatedParty_D3AB925B9F17EEDE7E3AEABBA10D3C61" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_CostsAndExpenses_10FCF728632276CBCA31EABBA10D01BE_terseLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpenses_10FCF728632276CBCA31EABBA10D01BE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Costs and Expenses </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_10FCF728632276CBCA31EABBA10D01BE" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_InterestExpenseDebt_DE8E69EAC301D2344F5AEABBA10DDE6E_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDebt_DE8E69EAC301D2344F5AEABBA10DDE6E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Interest Expense, Debt </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="loc_us-gaap_InterestExpenseDebt_DE8E69EAC301D2344F5AEABBA10DDE6E" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpense_75D7FBE28201577D1BA1EABBA10D0350_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpense_75D7FBE28201577D1BA1EABBA10D0350" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Other Nonoperating Income (Expense) </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_75D7FBE28201577D1BA1EABBA10D0350" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8AFAD3979C193199B43EEABBA10DC36B_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8AFAD3979C193199B43EEABBA10DC36B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8AFAD3979C193199B43EEABBA10DC36B" xlink:type="locator"/> |
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| | <link:label id="lab_srt_CondensedBalanceSheetStatementTable_001857004369425B3CBDEABBA31147F2_terseLabel_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementTable_001857004369425B3CBDEABBA31147F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Balance Sheet Statement [Table] </link:label> |
| | <link:label id="lab_srt_CondensedBalanceSheetStatementTable_001857004369425B3CBDEABBA31147F2_label_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementTable_001857004369425B3CBDEABBA31147F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Condensed Balance Sheet Statement [Table] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedBalanceSheetStatementTable" xlink:label="loc_srt_CondensedBalanceSheetStatementTable_001857004369425B3CBDEABBA31147F2" xlink:type="locator"/> |
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| | <link:label id="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems_8B921FC6C3FEDCC20604EABBA31585A0_terseLabel_en-US" xlink:label="lab_srt_CondensedBalanceSheetStatementsCaptionsLineItems_8B921FC6C3FEDCC20604EABBA31585A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Condensed Balance Sheet Statements, Captions [Line Items] </link:label> |
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| | <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:label="loc_srt_CondensedBalanceSheetStatementsCaptionsLineItems_8B921FC6C3FEDCC20604EABBA31585A0" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_3D844189B6844DEE0211EABBA315D3E8_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_3D844189B6844DEE0211EABBA315D3E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Property, Plant and Equipment, Net </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_3D844189B6844DEE0211EABBA315D3E8" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_Assets_CBFD7BDEA26DC795109FEABBA3155CDF_terseLabel_en-US" xlink:label="lab_us-gaap_Assets_CBFD7BDEA26DC795109FEABBA3155CDF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Assets </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_CBFD7BDEA26DC795109FEABBA3155CDF" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_LiabilitiesCurrent_2751FB895FE11AA6288CEABBA315D0D1_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_2751FB895FE11AA6288CEABBA315D0D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities, Current </link:label> |
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| | <link:label id="lab_us-gaap_Liabilities_4588C34FD4643F98DF72EABBA315AC01_terseLabel_en-US" xlink:label="lab_us-gaap_Liabilities_4588C34FD4643F98DF72EABBA315AC01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_4588C34FD4643F98DF72EABBA315AC01" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_MembersEquity_BDD8BA2D1AAC751280C2EABBA315ABB5_terseLabel_en-US" xlink:label="lab_us-gaap_MembersEquity_BDD8BA2D1AAC751280C2EABBA315ABB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Members' Equity </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MembersEquity" xlink:label="loc_us-gaap_MembersEquity_BDD8BA2D1AAC751280C2EABBA315ABB5" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_9B5F1843E65194BCACC8EABBA3158DE1_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_9B5F1843E65194BCACC8EABBA3158DE1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Liabilities and Equity </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_9B5F1843E65194BCACC8EABBA3158DE1" xlink:type="locator"/> |
| | <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_9B5F1843E65194BCACC8EABBA3158DE1" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_9B5F1843E65194BCACC8EABBA3158DE1" xlink:type="arc"/> |
| | <link:label id="lab_gsv_PurchaseOptionSprintSites_A536B2ECF65CB532B562FD658B714190_terseLabel_en-US" xlink:label="lab_gsv_PurchaseOptionSprintSites_7141472151E65AF4B680B840B5644662" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US"> Purchase option price </link:label> |
| | <link:label id="lab_gsv_PurchaseOptionSprintSites_A536B2ECF65CB532B562FD658B714190_label_en-US" xlink:label="lab_gsv_PurchaseOptionSprintSites_7141472151E65AF4B680B840B5644662" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Purchase Option, Sprint Sites </link:label> |
| | <link:label id="lab_gsv_PurchaseOptionSprintSites_A536B2ECF65CB532B562FD658B714190_documentation_en-US" xlink:label="lab_gsv_PurchaseOptionSprintSites_7141472151E65AF4B680B840B5644662" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US"> Represents the Company's purchase option for Sprint sites. Inclusive of towers and other structures, such as rooftops. </link:label> |
| | <link:loc xlink:href="gsv-20200331.xsd#gsv_PurchaseOptionSprintSites" xlink:label="loc_gsv_PurchaseOptionSprintSites_7141472151E65AF4B680B840B5644662" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_84BABA5D0F7961D024FAFD658B04B4BD_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0EF535FA70755786BCF7F6E7C655F352" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Supplemental Cash Flow Information [Abstract] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_0EF535FA70755786BCF7F6E7C655F352" xlink:type="locator"/> |
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| | <link:label id="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_E478E7883FFAD1183784FD658B0440C0_label_en-US" xlink:label="lab_us-gaap_CashFlowSupplementalDisclosuresTextBlock_9B21A8F46B105EB4A5E2EBD372BF3944" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US"> Cash Flow, Supplemental Disclosures [Text Block] </link:label> |
| | <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowSupplementalDisclosuresTextBlock" xlink:label="loc_us-gaap_CashFlowSupplementalDisclosuresTextBlock_9B21A8F46B105EB4A5E2EBD372BF3944" xlink:type="locator"/> |
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