XML 108 R95.htm IDEA: XBRL DOCUMENT
v3.21.2

REPORTABLE SEGMENTS - Schedule of summary of segment depreciation and amortization and capital expenditures (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2019
Segment Reporting Information [Line Items] |  |  |
DEPRECIATION and AMORTIZATION | $ 52,302 | $ 52,100 | $ 51,517
Subtotal | 62,565 | 61,794 | 61,290
CAPITAL EXPENDITURES | 36,951 | 41,168 | 34,869
Subtotal | 47,256 | 48,650 | 44,818
Discontinued Operations, Held-for-sale | Defense Electronics |  |  |
Segment Reporting Information [Line Items] |  |  |
Depreciation and amortization from Defense Electronics | 10,762 | 10,645 | 10,667
Capital expenditures from Defense Electronics | 10,343 | 7,830 | 10,492
Operating |  |  |
Segment Reporting Information [Line Items] |  |  |
DEPRECIATION and AMORTIZATION | 51,803 | 51,149 | 50,623
CAPITAL EXPENDITURES | 36,913 | 40,820 | 34,326
Corporate |  |  |
Segment Reporting Information [Line Items] |  |  |
DEPRECIATION and AMORTIZATION | 499 | 951 | 894
CAPITAL EXPENDITURES | 38 | 348 | 543
Consumer and Professional Products |  |  |
Segment Reporting Information [Line Items] |  |  |
DEPRECIATION and AMORTIZATION | 34,433 | 32,788 | 32,289
CAPITAL EXPENDITURES | 28,265 | 23,321 | 17,828
Home and Building Products |  |  |
Segment Reporting Information [Line Items] |  |  |
DEPRECIATION and AMORTIZATION | 17,370 | 18,361 | 18,334
CAPITAL EXPENDITURES | $ 8,648 | $ 17,499 | $ 16,498

X
- Definition Depreciation, Depletion and Amortization, Including Discontinued Operation + References No definition available. + Details
Name: | gff_DepreciationDepletionAndAmortizationIncludingDiscontinuedOperation
Namespace Prefix: | gff_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disposal Group, Including Discontinued Operation, Payment To Acquire Property, Plant, And Equipment + References No definition available. + Details
Name: | gff_DisposalGroupIncludingDiscontinuedOperationPaymentToAcquirePropertyPlantAndEquipment
Namespace Prefix: | gff_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Payments To Acquire Property, Plant, And Equipment, Including Discontinued Operation + References No definition available. + Details
Name: | gff_PaymentsToAcquirePropertyPlantAndEquipmentIncludingDiscontinuedOperation
Namespace Prefix: | gff_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 + Details
Name: | us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line 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. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldforsaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=gff_DefenseElectronicsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gff_ConsumerAndProfessionalProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=gff_HomeandBuildingProductsHBPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |