v3.7.0.1
Derivative Instruments (Offsetting Derivative Assets) (Details) - USD ($)
|
12 Months Ended |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
$ 9,107,388
|
$ 9,008,538
|
| Gross amounts offset in the Statement of Financial Condition |
(4,042,322)
|
(4,620,473)
|
| Net amounts of assets presented in the Statement of Financial Condition |
5,065,066
|
4,388,065
|
| Financial Instruments |
|
|
| Collateral Received |
(3,403,431)
|
(2,662,171)
|
| Net Amount |
$ 1,661,635
|
$ 1,725,894
|
| Collateral disclosed as a percentage of net assets, maximum allowed |
100.00%
|
100.00%
|
| Counterparty C [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
$ 2,567,252
|
$ 512,241
|
| Financial Instruments |
|
|
| Collateral Received |
(2,567,252)
|
(512,241)
|
| Net Amount |
|
|
| Counterparty G [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
890,569
|
1,725,894
|
| Financial Instruments |
|
|
| Net Amount |
890,569
|
1,725,894
|
| Counterparty H [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
771,066
|
|
| Financial Instruments |
|
|
| Net Amount |
771,066
|
|
| Counterparty I [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
836,179
|
2,149,930
|
| Financial Instruments |
|
|
| Collateral Received |
(836,179)
|
(2,149,930)
|
| Net Amount |
|
|
| Futures Contracts [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
5,793,311
|
5,513,420
|
| Gross amounts offset in the Statement of Financial Condition |
(2,389,880)
|
(2,851,249)
|
| Net amounts of assets presented in the Statement of Financial Condition |
3,403,431
|
2,662,171
|
| Futures Contracts [Member] | Counterparty C [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
3,694,763
|
1,820,652
|
| Gross amounts offset in the Statement of Financial Condition |
(1,127,511)
|
(1,308,411)
|
| Net amounts of assets presented in the Statement of Financial Condition |
2,567,252
|
512,241
|
| Futures Contracts [Member] | Counterparty I [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
2,098,548
|
3,692,768
|
| Gross amounts offset in the Statement of Financial Condition |
(1,262,369)
|
(1,542,838)
|
| Net amounts of assets presented in the Statement of Financial Condition |
836,179
|
2,149,930
|
| Forward Currency Contracts [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
3,314,077
|
|
| Gross amounts offset in the Statement of Financial Condition |
(1,652,442)
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
1,661,635
|
|
| Forward Currency Contracts [Member] | Counterparty G [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
1,572,076
|
3,495,118
|
| Gross amounts offset in the Statement of Financial Condition |
(681,507)
|
(1,769,224)
|
| Net amounts of assets presented in the Statement of Financial Condition |
890,569
|
$ 1,725,894
|
| Forward Currency Contracts [Member] | Counterparty H [Member] |
|
|
| Offsetting Assets [Line Items] |
|
|
| Gross amounts of recognized assets |
1,742,001
|
|
| Gross amounts offset in the Statement of Financial Condition |
(970,935)
|
|
| Net amounts of assets presented in the Statement of Financial Condition |
$ 771,066
|
|
| X |
- DefinitionCollateral As A Percentage Of Net Assets, Maximum
| Name: |
millgmt_CollateralAsPercentageOfNetAssetsMaximum |
| Namespace Prefix: |
millgmt_ |
| Data Type: |
num:percentItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- DefinitionAmount of obligation to return cash collateral under master netting arrangements offset against derivative assets.
| Name: |
us-gaap_DerivativeAssetCollateralObligationToReturnCashOffset |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
instant |
|
| X |
- DefinitionFair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.
| Name: |
us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- DefinitionFair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.
| Name: |
us-gaap_DerivativeAssetFairValueGrossLiability |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
instant |
|
| X |
- DefinitionFair value, after effects of master netting arrangements, deduction of assets not subject to a master netting arrangement and elected not to be offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, offset against an obligation to return collateral.
| Name: |
us-gaap_DerivativeAssetFairValueOffsetAgainstCollateralNetOfNotSubjectToMasterNettingArrangementPolicyElection |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- DefinitionFair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, not subject to a master netting arrangement, deducted from derivative assets.
| Name: |
us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangementDeduction |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
credit |
| Period Type: |
instant |
|
| X |
- DefinitionFair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.
| Name: |
us-gaap_DerivativeAssets |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:monetaryItemType |
| Balance Type: |
debit |
| Period Type: |
instant |
|
| X |
- DefinitionLine items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
| Name: |
us-gaap_OffsettingAssetsLineItems |
| Namespace Prefix: |
us-gaap_ |
| Data Type: |
xbrli:stringItemType |
| Balance Type: |
na |
| Period Type: |
duration |
|
| X |
- Details
| Name: |
us-gaap_CounterpartyNameAxis=millgmt_CounterpartyCMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
| X |
- Details
| Name: |
us-gaap_CounterpartyNameAxis=millgmt_CounterpartyGMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
| X |
- Details
| Name: |
us-gaap_CounterpartyNameAxis=millgmt_CounterpartyHMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
| X |
- Details
| Name: |
us-gaap_CounterpartyNameAxis=millgmt_CounterpartyIMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
| X |
- Details
| Name: |
us-gaap_DerivativeInstrumentRiskAxis=us-gaap_FutureMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
| X |
- Details
| Name: |
us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForwardContractsMember |
| Namespace Prefix: |
|
| Data Type: |
na |
| Balance Type: |
|
| Period Type: |
|
|
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