| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> |
| <Version> 2.4.0.8 </Version> |
| <ProcessingTime/> |
| <ReportFormat> Html </ReportFormat> |
| <ContextCount> 534 </ContextCount> |
| <ElementCount> 632 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> true </FootnotesReported> |
| <SegmentCount> 142 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 16 </UnitCount> |
| <MyReports> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 0001000 - Document - Document And Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DocumentAndEntityInformation </Role> |
| | | <ShortName> Document And Entity Information </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> true </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 1001000 - Statement - CONSOLIDATED BALANCE SHEETS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatedBalanceSheets </Role> |
| | | <ShortName> CONSOLIDATED BALANCE SHEETS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parentheticals) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatedBalanceSheetsParentheticals </Role> |
| | | <ShortName> CONSOLIDATED BALANCE SHEETS (Parentheticals) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncomeLoss </Role> |
| | | <ShortName> CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 1004000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatedStatementsOfCashFlows </Role> |
| | | <ShortName> CONSOLIDATED STATEMENTS OF CASH FLOWS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 1005000 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatedStatementsOfShareholdersEquity </Role> |
| | | <ShortName> CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 2101100 - Disclosure - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPolicies </Role> |
| | | <ShortName> DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 2102100 - Disclosure - ACQUISITIONS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/Acquisitions </Role> |
| | | <ShortName> ACQUISITIONS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 2103100 - Disclosure - INVENTORIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/Inventories </Role> |
| | | <ShortName> INVENTORIES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 2104100 - Disclosure - PROPERTY, PLANT AND EQUIPMENT </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/PropertyPlantAndEquipment </Role> |
| | | <ShortName> PROPERTY, PLANT AND EQUIPMENT </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 2105100 - Disclosure - GOODWILL AND OTHER INTANGIBLES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/GoodwillAndOtherIntangibles </Role> |
| | | <ShortName> GOODWILL AND OTHER INTANGIBLES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 2106100 - Disclosure - DISCONTINUED OPERATIONS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DiscontinuedOperations </Role> |
| | | <ShortName> DISCONTINUED OPERATIONS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 2107100 - Disclosure - ACCRUED LIABILITIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AccruedLiabilities </Role> |
| | | <ShortName> ACCRUED LIABILITIES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 2108100 - Disclosure - RESTRUCTURING AND OTHER RELATED CHARGES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RestructuringAndOtherRelatedCharges </Role> |
| | | <ShortName> RESTRUCTURING AND OTHER RELATED CHARGES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 2109100 - Disclosure - WARRANTY LIABILITY </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/WarrantyLiability </Role> |
| | | <ShortName> WARRANTY LIABILITY </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 2110100 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebt </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 2111100 - Disclosure - EMPLOYEE BENEFIT PLANS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlans </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 2112100 - Disclosure - INCOME TAXES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxes </Role> |
| | | <ShortName> INCOME TAXES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 2113100 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensation </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 2114100 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/CommitmentsAndContingentLiabilities </Role> |
| | | <ShortName> COMMITMENTS AND CONTINGENT LIABILITIES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 2115100 - Disclosure - EARNINGS (LOSS) PER SHARE </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EarningsLossPerShare </Role> |
| | | <ShortName> EARNINGS (LOSS) PER SHARE </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 2116100 - Disclosure - RELATED PARTIES </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RelatedParties </Role> |
| | | <ShortName> RELATED PARTIES </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 2117100 - Disclosure - QUARTERLY FINANCIAL INFORMATION (UNAUDITED) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/QuarterlyFinancialInformationUnaudited </Role> |
| | | <ShortName> QUARTERLY FINANCIAL INFORMATION (UNAUDITED) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 2118100 - Disclosure - REPORTABLE SEGMENTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegments </Role> |
| | | <ShortName> REPORTABLE SEGMENTS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 2119100 - Disclosure - OTHER INCOME (EXPENSE) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherIncomeExpense </Role> |
| | | <ShortName> OTHER INCOME (EXPENSE) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 2120100 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLoss </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 2121100 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformation </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 2122100 - Disclosure - SUBSEQUENT EVENTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/SubsequentEvents </Role> |
| | | <ShortName> SUBSEQUENT EVENTS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 2123100 - Disclosure - SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ScheduleIiValuationAndQualifyingAccounts </Role> |
| | | <ShortName> SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 2201201 - Disclosure - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesPolicies </Role> |
| | | <ShortName> DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 2302301 - Disclosure - ACQUISITIONS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AcquisitionsTables </Role> |
| | | <ShortName> ACQUISITIONS (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 2303301 - Disclosure - INVENTORIES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/InventoriesTables </Role> |
| | | <ShortName> INVENTORIES (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 2304301 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/PropertyPlantAndEquipmentTables </Role> |
| | | <ShortName> PROPERTY, PLANT AND EQUIPMENT (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 2305301 - Disclosure - GOODWILL AND OTHER INTANGIBLES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/GoodwillAndOtherIntangiblesTables </Role> |
| | | <ShortName> GOODWILL AND OTHER INTANGIBLES (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 2306301 - Disclosure - DISCONTINUED OPERATIONS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DiscontinuedOperationsTables </Role> |
| | | <ShortName> DISCONTINUED OPERATIONS (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 2307301 - Disclosure - ACCRUED LIABILITIES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AccruedLiabilitiesTables </Role> |
| | | <ShortName> ACCRUED LIABILITIES (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 2308301 - Disclosure - RESTRUCTURING AND OTHER RELATED CHARGES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RestructuringAndOtherRelatedChargesTables </Role> |
| | | <ShortName> RESTRUCTURING AND OTHER RELATED CHARGES (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 2309301 - Disclosure - WARRANTY LIABILITY (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/WarrantyLiabilityTables </Role> |
| | | <ShortName> WARRANTY LIABILITY (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 2310301 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Tables) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebtTables </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 2311301 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansTables </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 2312301 - Disclosure - INCOME TAXES (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesTables </Role> |
| | | <ShortName> INCOME TAXES (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 2313301 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationTables </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 2315301 - Disclosure - EARNINGS (LOSS) PER SHARE (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EarningsLossPerShareTables </Role> |
| | | <ShortName> EARNINGS (LOSS) PER SHARE (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 2317301 - Disclosure - QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/QuarterlyFinancialInformationUnauditedTables </Role> |
| | | <ShortName> QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 2318301 - Disclosure - REPORTABLE SEGMENTS (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegmentsTables </Role> |
| | | <ShortName> REPORTABLE SEGMENTS (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 2320301 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLossTables </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 2321301 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformationTables </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Tables) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 2401402 - Disclosure - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesDetails </Role> |
| | | <ShortName> DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 2402402 - Disclosure - ACQUISITIONS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AcquisitionsDetails </Role> |
| | | <ShortName> ACQUISITIONS (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 2402403 - Disclosure - ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AcquisitionsDetailsSummaryOfFairValuesOfAssetsAcquired </Role> |
| | | <ShortName> ACQUISITIONS (Details) - Summary of Fair Values of Assets Acquired </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 2402404 - Disclosure - ACQUISITIONS (Details) - Summary of Goodwill and Intangible Asset Classifications </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AcquisitionsDetailsSummaryOfGoodwillAndIntangibleAssetClassifications </Role> |
| | | <ShortName> ACQUISITIONS (Details) - Summary of Goodwill and Intangible Asset Classifications </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 2403402 - Disclosure - INVENTORIES (Details) - Summary of Inventories stated at lower cost </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/InventoriesDetailsSummaryOfInventoriesStatedAtLowerCost </Role> |
| | | <ShortName> INVENTORIES (Details) - Summary of Inventories stated at lower cost </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 2404402 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of property plant and equipment </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/PropertyPlantAndEquipmentDetailsSummaryOfPropertyPlantAndEquipment </Role> |
| | | <ShortName> PROPERTY, PLANT AND EQUIPMENT (Details) - Summary of property plant and equipment </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 2405402 - Disclosure - GOODWILL AND OTHER INTANGIBLES (Details) - Summary of changes in carrying value of goodwill </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/GoodwillAndOtherIntangiblesDetailsSummaryOfChangesInCarryingValueOfGoodwill </Role> |
| | | <ShortName> GOODWILL AND OTHER INTANGIBLES (Details) - Summary of changes in carrying value of goodwill </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 2405403 - Disclosure - GOODWILL AND OTHER INTANGIBLES (Details) - Summary of gross carrying value and accumulated amortization of intangible assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/GoodwillAndOtherIntangiblesDetailsSummaryOfGrossCarryingValueAndAccumulatedAmortizationOfIntangibleAssets </Role> |
| | | <ShortName> GOODWILL AND OTHER INTANGIBLES (Details) - Summary of gross carrying value and accumulated amortization of intangible assets </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 2405404 - Disclosure - GOODWILL AND OTHER INTANGIBLES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/GoodwillAndOtherIntangiblesDetails </Role> |
| | | <ShortName> GOODWILL AND OTHER INTANGIBLES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 2406402 - Disclosure - DISCONTINUED OPERATIONS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DiscontinuedOperationsDetails </Role> |
| | | <ShortName> DISCONTINUED OPERATIONS (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R58.htm </HtmlFileName> |
| | | <LongName> 2406403 - Disclosure - DISCONTINUED OPERATIONS (Details) - Summary of discontinued operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/DiscontinuedOperationsDetailsSummaryOfDiscontinuedOperations </Role> |
| | | <ShortName> DISCONTINUED OPERATIONS (Details) - Summary of discontinued operations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R59.htm </HtmlFileName> |
| | | <LongName> 2407402 - Disclosure - ACCRUED LIABILITIES (Details) - Schedule of accrued liabilities </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/AccruedLiabilitiesDetailsScheduleOfAccruedLiabilities </Role> |
| | | <ShortName> ACCRUED LIABILITIES (Details) - Schedule of accrued liabilities </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R60.htm </HtmlFileName> |
| | | <LongName> 2408402 - Disclosure - RESTRUCTURING AND OTHER RELATED CHARGES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RestructuringAndOtherRelatedChargesDetails </Role> |
| | | <ShortName> RESTRUCTURING AND OTHER RELATED CHARGES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R61.htm </HtmlFileName> |
| | | <LongName> 2408403 - Disclosure - RESTRUCTURING AND OTHER RELATED CHARGES (Details) - Summary of the restructuring and other related charges </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RestructuringAndOtherRelatedChargesDetailsSummaryOfRestructuringAndOtherRelatedCharges </Role> |
| | | <ShortName> RESTRUCTURING AND OTHER RELATED CHARGES (Details) - Summary of the restructuring and other related charges </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R62.htm </HtmlFileName> |
| | | <LongName> 2408404 - Disclosure - RESTRUCTURING AND OTHER RELATED CHARGES (Details) - Summary of accrued liability for the restructuring and related charges </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RestructuringAndOtherRelatedChargesDetailsSummaryOfAccruedLiabilityForRestructuringAndRelatedCharges </Role> |
| | | <ShortName> RESTRUCTURING AND OTHER RELATED CHARGES (Details) - Summary of accrued liability for the restructuring and related charges </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R63.htm </HtmlFileName> |
| | | <LongName> 2409402 - Disclosure - WARRANTY LIABILITY (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/WarrantyLiabilityDetails </Role> |
| | | <ShortName> WARRANTY LIABILITY (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R64.htm </HtmlFileName> |
| | | <LongName> 2409403 - Disclosure - WARRANTY LIABILITY (Details) - Summary of changes in warrant liability included in Accrued liabilities </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/WarrantyLiabilityDetailsSummaryOfChangesInWarrantLiabilityIncludedInAccruedLiabilities </Role> |
| | | <ShortName> WARRANTY LIABILITY (Details) - Summary of changes in warrant liability included in Accrued liabilities </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R65.htm </HtmlFileName> |
| | | <LongName> 2410402 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of net minimum payments on capitalized leases </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebtDetailsSummaryOfNetMinimumPaymentsOnCapitalizedLeases </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of net minimum payments on capitalized leases </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R66.htm </HtmlFileName> |
| | | <LongName> 2410403 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebtDetails </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R67.htm </HtmlFileName> |
| | | <LongName> 2410404 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of Long-Term Debt </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebtDetailsSummaryOfLongTermDebt </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of Long-Term Debt </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R68.htm </HtmlFileName> |
| | | <LongName> 2410405 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of Interest Expense Incurred </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://griffoncorp.com/role/NotesPayableCapitalizedLeasesAndLongTermDebtDetailsSummaryOfInterestExpenseIncurred </Role> |
| | | <ShortName> NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details) - Summary of Interest Expense Incurred </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R69.htm </HtmlFileName> |
| | | <LongName> 2411402 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetails </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R70.htm </HtmlFileName> |
| | | <LongName> 2411403 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Schedule of net periodic costs </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsScheduleOfNetPeriodicCosts </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Schedule of net periodic costs </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R71.htm </HtmlFileName> |
| | | <LongName> 2411404 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Weighted-average assumptions used in determining the net periodic benefit costs </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsWeightedAverageAssumptionsUsedInDeterminingNetPeriodicBenefitCosts </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Weighted-average assumptions used in determining the net periodic benefit costs </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R72.htm </HtmlFileName> |
| | | <LongName> 2411405 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Plan assets and benefit obligation of the defined benefit plans </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsPlanAssetsAndBenefitObligationOfDefinedBenefitPlans </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Plan assets and benefit obligation of the defined benefit plans </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R73.htm </HtmlFileName> |
| | | <LongName> 2411406 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Schedule of weighted average assumptions used in determining benefit obligations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsScheduleOfWeightedAverageAssumptionsUsedInDeterminingBenefitObligations </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Schedule of weighted average assumptions used in determining benefit obligations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R74.htm </HtmlFileName> |
| | | <LongName> 2411407 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Actual and weighted-average assets allocation for qualified benefit plans </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsActualAndWeightedAverageAssetsAllocationForQualifiedBenefitPlans </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Actual and weighted-average assets allocation for qualified benefit plans </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R75.htm </HtmlFileName> |
| | | <LongName> 2411408 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Estimated future benefit payments to retirees </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsEstimatedFutureBenefitPaymentsToRetirees </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Estimated future benefit payments to retirees </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R76.htm </HtmlFileName> |
| | | <LongName> 2411409 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Pension and post-retirement plan assets by asset category </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsPensionAndPostRetirementPlanAssetsByAssetCategory </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - Pension and post-retirement plan assets by asset category </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R77.htm </HtmlFileName> |
| | | <LongName> 2411410 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - ESOP Shares </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EmployeeBenefitPlansDetailsEsopShares </Role> |
| | | <ShortName> EMPLOYEE BENEFIT PLANS (Details) - ESOP Shares </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R78.htm </HtmlFileName> |
| | | <LongName> 2412402 - Disclosure - INCOME TAXES (Details) - Components of Income before taxes and discontinued operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsComponentsOfIncomeBeforeTaxesAndDiscontinuedOperations </Role> |
| | | <ShortName> INCOME TAXES (Details) - Components of Income before taxes and discontinued operations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R79.htm </HtmlFileName> |
| | | <LongName> 2412403 - Disclosure - INCOME TAXES (Details) - Provision (benefit) for income taxes on income from continuing operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsProvisionBenefitForIncomeTaxesOnIncomeFromContinuingOperations </Role> |
| | | <ShortName> INCOME TAXES (Details) - Provision (benefit) for income taxes on income from continuing operations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R80.htm </HtmlFileName> |
| | | <LongName> 2412404 - Disclosure - INCOME TAXES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetails </Role> |
| | | <ShortName> INCOME TAXES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R81.htm </HtmlFileName> |
| | | <LongName> 2412405 - Disclosure - INCOME TAXES (Details) - Schedule of effective income tax rate reconciliation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsScheduleOfEffectiveIncomeTaxRateReconciliation </Role> |
| | | <ShortName> INCOME TAXES (Details) - Schedule of effective income tax rate reconciliation </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R82.htm </HtmlFileName> |
| | | <LongName> 2412406 - Disclosure - INCOME TAXES (Details) - Schedule of deferred tax assets and liabilities </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsScheduleOfDeferredTaxAssetsAndLiabilities </Role> |
| | | <ShortName> INCOME TAXES (Details) - Schedule of deferred tax assets and liabilities </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R83.htm </HtmlFileName> |
| | | <LongName> 2412407 - Disclosure - INCOME TAXES (Details) - Components of net deferred tax asset (liability), by balance sheet account </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsComponentsOfNetDeferredTaxAssetLiabilityByBalanceSheetAccount </Role> |
| | | <ShortName> INCOME TAXES (Details) - Components of net deferred tax asset (liability), by balance sheet account </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R84.htm </HtmlFileName> |
| | | <LongName> 2412408 - Disclosure - INCOME TAXES (Details) - Schedule of unrecognized tax benefits </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/IncomeTaxesDetailsScheduleOfUnrecognizedTaxBenefits </Role> |
| | | <ShortName> INCOME TAXES (Details) - Schedule of unrecognized tax benefits </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R85.htm </HtmlFileName> |
| | | <LongName> 2413402 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationDetails </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R86.htm </HtmlFileName> |
| | | <LongName> 2413403 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of stock-based compensation expense (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationDetailsSummaryOfStockBasedCompensationExpenseDetails </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of stock-based compensation expense (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R87.htm </HtmlFileName> |
| | | <LongName> 2413404 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of stock option activity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationDetailsSummaryOfStockOptionActivity </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of stock option activity </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R88.htm </HtmlFileName> |
| | | <LongName> 2413405 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Stock options activity range of exercise prices </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationDetailsStockOptionsActivityRangeOfExercisePrices </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Stock options activity range of exercise prices </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R89.htm </HtmlFileName> |
| | | <LongName> 2413406 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of restricted stock activity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/StockholdersEquityAndEquityCompensationDetailsSummaryOfRestrictedStockActivity </Role> |
| | | <ShortName> STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details) - Summary of restricted stock activity </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R90.htm </HtmlFileName> |
| | | <LongName> 2414401 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/CommitmentsAndContingentLiabilitiesDetails </Role> |
| | | <ShortName> COMMITMENTS AND CONTINGENT LIABILITIES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R91.htm </HtmlFileName> |
| | | <LongName> 2415402 - Disclosure - EARNINGS (LOSS) PER SHARE (Details) - Basic and diluted EPS from continuing operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/EarningsLossPerShareDetailsBasicAndDilutedEpsFromContinuingOperations </Role> |
| | | <ShortName> EARNINGS (LOSS) PER SHARE (Details) - Basic and diluted EPS from continuing operations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R92.htm </HtmlFileName> |
| | | <LongName> 2416401 - Disclosure - RELATED PARTIES (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/RelatedPartiesDetails </Role> |
| | | <ShortName> RELATED PARTIES (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R93.htm </HtmlFileName> |
| | | <LongName> 2417402 - Disclosure - QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/QuarterlyFinancialInformationUnauditedDetails </Role> |
| | | <ShortName> QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R94.htm </HtmlFileName> |
| | | <LongName> 2417403 - Disclosure - QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - Schedule of quarterly financial information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/QuarterlyFinancialInformationUnauditedDetailsScheduleOfQuarterlyFinancialInformation </Role> |
| | | <ShortName> QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Details) - Schedule of quarterly financial information </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R95.htm </HtmlFileName> |
| | | <LongName> 2418402 - Disclosure - REPORTABLE SEGMENTS (Details) - Schedule of Summary of Reconciliation of Segment Profit Before Taxes and Operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegmentsDetailsScheduleOfSummaryOfReconciliationOfSegmentProfitBeforeTaxesAndOperations </Role> |
| | | <ShortName> REPORTABLE SEGMENTS (Details) - Schedule of Summary of Reconciliation of Segment Profit Before Taxes and Operations </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R96.htm </HtmlFileName> |
| | | <LongName> 2418403 - Disclosure - REPORTABLE SEGMENTS (Details) - Schedule of summary of segment assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegmentsDetailsScheduleOfSummaryOfSegmentAssets </Role> |
| | | <ShortName> REPORTABLE SEGMENTS (Details) - Schedule of summary of segment assets </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R97.htm </HtmlFileName> |
| | | <LongName> 2418404 - Disclosure - REPORTABLE SEGMENTS (Details) - Schedule of Segment Information by Geographic Region </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegmentsDetailsScheduleOfSegmentInformationByGeographicRegion </Role> |
| | | <ShortName> REPORTABLE SEGMENTS (Details) - Schedule of Segment Information by Geographic Region </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R98.htm </HtmlFileName> |
| | | <LongName> 2418405 - Disclosure - REPORTABLE SEGMENTS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ReportableSegmentsDetails </Role> |
| | | <ShortName> REPORTABLE SEGMENTS (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R99.htm </HtmlFileName> |
| | | <LongName> 2419401 - Disclosure - OTHER INCOME (EXPENSE) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherIncomeExpenseDetails </Role> |
| | | <ShortName> OTHER INCOME (EXPENSE) (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R100.htm </HtmlFileName> |
| | | <LongName> 2420402 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Other Comprehensive Income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLossDetailsSummaryOfOtherComprehensiveIncome </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Other Comprehensive Income </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R101.htm </HtmlFileName> |
| | | <LongName> 2420403 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Accumulated Other Comprehensive Income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLossDetailsAccumulatedOtherComprehensiveIncome </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Accumulated Other Comprehensive Income </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R102.htm </HtmlFileName> |
| | | <LongName> 2420404 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Total Comprehensive Income (Loss) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLossDetailsTotalComprehensiveIncomeLoss </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Total Comprehensive Income (Loss) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R103.htm </HtmlFileName> |
| | | <LongName> 2420405 - Disclosure - OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Amounts Reclassified from Accumulated Other Comprehensive Income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/OtherComprehensiveIncomeLossDetailsSummaryOfAmountsReclassifiedFromAccumulatedOtherComprehensiveIncome </Role> |
| | | <ShortName> OTHER COMPREHENSIVE INCOME (LOSS) (Details) - Summary of Amounts Reclassified from Accumulated Other Comprehensive Income </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R104.htm </HtmlFileName> |
| | | <LongName> 2421402 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformationDetails </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R105.htm </HtmlFileName> |
| | | <LongName> 2421403 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated balance sheets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformationDetailsSummaryOfConsolidatedBalanceSheets </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated balance sheets </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R106.htm </HtmlFileName> |
| | | <LongName> 2421404 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated statement of operations and comprehensive income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformationDetailsSummaryOfConsolidatedStatementOfOperationsAndComprehensiveIncome </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated statement of operations and comprehensive income </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R107.htm </HtmlFileName> |
| | | <LongName> 2421405 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated cash flows </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ConsolidatingGuarantorAndNonGuarantorFinancialInformationDetailsSummaryOfConsolidatedCashFlows </Role> |
| | | <ShortName> CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated cash flows </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R108.htm </HtmlFileName> |
| | | <LongName> 2422401 - Disclosure - SUBSEQUENT EVENTS (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/SubsequentEventsDetails </Role> |
| | | <ShortName> SUBSEQUENT EVENTS (Details) </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R109.htm </HtmlFileName> |
| | | <LongName> 2423401 - Disclosure - SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Schedule of Valuation and Qualifying Accounts </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://griffoncorp.com/role/ScheduleIiValuationAndQualifyingAccountsDetailsScheduleOfValuationAndQualifyingAccounts </Role> |
| | | <ShortName> SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Schedule of Valuation and Qualifying Accounts </ShortName> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <Logs> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 had a mix of decimals attribute values: 0 3 4. </Log> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentFaceAmount had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentInterestRateAtPeriodEnd had a mix of decimals attribute values: 0 3. </Log> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentInterestRateDuringPeriod had a mix of decimals attribute values: 0 3 4. </Log> |
| | <Log type="Info"> Element us-gaap_DebtInstrumentInterestRateStatedPercentage had a mix of decimals attribute values: 0 2. </Log> |
| | <Log type="Info"> Element us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1 had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations had a mix of decimals attribute values: 2 3. </Log> |
| | <Log type="Info"> Element us-gaap_LineOfCreditFacilityAmountOutstanding had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_OperatingLossCarryforwards had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_PaymentsOfDividendsCommonStock had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> Element us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized had a mix of decimals attribute values: -2 0. </Log> |
| | <Log type="Info"> Element us-gaap_StockRepurchasedDuringPeriodValue had a mix of decimals attribute values: -3 0. </Log> |
| | <Log type="Info"> 'Shares' elements on report '1005000 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2401402 - Disclosure - DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2410403 - Disclosure - NOTES PAYABLE, CAPITALIZED LEASES AND LONG-TERM DEBT (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2411402 - Disclosure - EMPLOYEE BENEFIT PLANS (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2411403 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) - Schedule of net periodic costs' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2412404 - Disclosure - INCOME TAXES (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2413402 - Disclosure - STOCKHOLDERS' EQUITY AND EQUITY COMPENSATION (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2414401 - Disclosure - COMMITMENTS AND CONTINGENT LIABILITIES (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2416401 - Disclosure - RELATED PARTIES (Details)' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2418402 - Disclosure - REPORTABLE SEGMENTS (Details) - Schedule of Summary of Reconciliation of Segment Profit Before Taxes and Operations' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> 'Monetary' elements on report '2421405 - Disclosure - CONSOLIDATING GUARANTOR AND NON-GUARANTOR FINANCIAL INFORMATION (Details) - Summary of consolidated cash flows' had a mix of different decimal attribute values. </Log> |
| | <Log type="Info"> Process Flow-Through: 1001000 - Statement - CONSOLIDATED BALANCE SHEETS </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column 'Sep. 30, 2012' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column 'Sep. 30, 2011' </Log> |
| | <Log type="Info"> Process Flow-Through: 1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parentheticals) </Log> |
| | <Log type="Info"> Process Flow-Through: 1002000 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2014' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2013' </Log> |
| | <Log type="Info"> Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2012' </Log> |
| | <Log type="Info"> Process Flow-Through: 1004000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS </Log> |
| | </Logs> |
| <InputFiles> |
| | <File> gff-20140930.xml </File> |
| | <File> gff-20140930.xsd </File> |
| | <File> gff-20140930_cal.xml </File> |
| | <File> gff-20140930_def.xml </File> |
| | <File> gff-20140930_lab.xml </File> |
| | <File> gff-20140930_pre.xml </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies/> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |