Griffon (GFF) 10-Q 29 Apr 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page	6 Months Ended
	Mar. 31, 2022shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	1-06620
Entity Registrant Name	GRIFFON CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	11-1893410
Entity Address, Address Line One	712 Fifth Ave, 18th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10019
City Area Code	212
Local Phone Number	957-5000
Title of 12(b) Security	Common Stock, $0.25 par value
Trading Symbol	GFF
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	57,032,073
Current Fiscal Year End Date	--09-30
Amendment Flag	false
Entity Central Index Key	0000050725
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
CURRENT ASSETS
Cash and equivalents	$ 122,293	$ 248,653
Accounts receivable, net of allowances of $13,500 and $8,787	512,449	294,804
Inventories	687,011	472,794
Prepaid and other current assets	62,975	76,009
Total Current Assets	1,650,086	1,366,279
PROPERTY, PLANT AND EQUIPMENT, net	304,169	292,622
OPERATING LEASE RIGHT-OF-USE ASSETS	149,587	144,598
GOODWILL	707,523	426,148
INTANGIBLE ASSETS, net	949,730	350,025
OTHER ASSETS	22,734	21,589
ASSETS OF DISCONTINUED OPERATIONS	3,194	3,424
Total Assets	3,787,023	2,604,685
CURRENT LIABILITIES
Notes payable and current portion of long-term debt	25,110	12,486
Accounts payable	227,085	260,140
Accrued liabilities	222,334	145,101
Current portion of operating lease liabilities	32,210	29,881
Total Current Liabilities	583,269	531,636
LONG-TERM DEBT, net	1,941,725	1,033,197
LONG-TERM OPERATING LEASE LIABILITIES	122,488	119,315
OTHER LIABILITIES	251,921	109,585
LIABILITIES OF DISCONTINUED OPERATIONS	4,406	3,794
Total Liabilities	2,903,809	1,797,527
COMMITMENTS AND CONTINGENCIES - See Note 22
SHAREHOLDERS’ EQUITY
Total Shareholders’ Equity	883,214	807,158
Total Liabilities and Shareholders’ Equity	3,787,023	2,604,685
Discontinued Operations, Held-for-sale
CURRENT ASSETS
Assets of discontinued operations	264,861	273,414
CURRENT LIABILITIES
Liabilities of discontinued operations	73,218	80,748
Discontinued Operations, Not Held-for-sale
CURRENT ASSETS
Assets of discontinued operations	497	605
CURRENT LIABILITIES
Liabilities of discontinued operations	$ 3,312	$ 3,280

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Statement of Financial Position [Abstract]
Accounts receivable, net allowances	$ 13,500	$ 8,787

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	COMMON STOCK	CAPITAL IN EXCESS OF PAR VALUE	RETAINED EARNINGS	TREASURY SHARES	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	DEFERRED COMPENSATION
Balance (in shares) at Sep. 30, 2020		83,739			27,610
Balance at Sep. 30, 2020	$ 700,151	$ 20,935	$ 583,008	$ 607,518	$ (413,493)	$ (72,092)	$ (25,725)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,500			29,500
Dividend	(4,469)			(4,469)
Shares withheld on employee taxes on vested equity awards (in shares)					133
Shares withheld on employee taxes on vested equity awards	(2,909)				$ (2,909)
Amortization of deferred compensation	609						609
Equity awards granted, net (in shares)		494
Equity awards granted, net	0	$ 123	(123)
ESOP allocation of common stock	596		596
Stock-based compensation	3,428		3,428
Other comprehensive income, net of tax	13,141					13,141
Balance (in shares) at Dec. 31, 2020		84,233			27,743
Balance at Dec. 31, 2020	740,047	$ 21,058	586,909	632,549	$ (416,402)	(58,951)	(25,116)
Balance (in shares) at Sep. 30, 2020		83,739			27,610
Balance at Sep. 30, 2020	700,151	$ 20,935	583,008	607,518	$ (413,493)	(72,092)	(25,725)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	46,612
Other comprehensive income, net of tax	17,916
Balance (in shares) at Mar. 31, 2021		84,427			27,743
Balance at Mar. 31, 2021	764,431	$ 21,106	591,966	646,444	$ (416,402)	(54,176)	(24,507)
Balance (in shares) at Dec. 31, 2020		84,233			27,743
Balance at Dec. 31, 2020	740,047	$ 21,058	586,909	632,549	$ (416,402)	(58,951)	(25,116)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	17,112			17,112
Dividend	(3,217)			(3,217)
Amortization of deferred compensation	609						609
Equity awards granted, net (in shares)		194
Equity awards granted, net	0	$ 48	(48)
ESOP allocation of common stock	756		756
Stock-based compensation	4,349		4,349
Other comprehensive income, net of tax	4,775					4,775
Balance (in shares) at Mar. 31, 2021		84,427			27,743
Balance at Mar. 31, 2021	764,431	$ 21,106	591,966	646,444	$ (416,402)	(54,176)	(24,507)
Balance (in shares) at Sep. 30, 2021		84,375			27,762
Balance at Sep. 30, 2021	807,158	$ 21,094	602,181	669,998	$ (416,850)	(45,977)	(23,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	19,298			19,298
Dividend	(4,739)			(4,739)
Shares withheld on employee taxes on vested equity awards (in shares)					422
Shares withheld on employee taxes on vested equity awards	(10,886)				$ (10,886)
Amortization of deferred compensation	591						591
Equity awards granted, net (in shares)		113
Equity awards granted, net	0	$ 28	(28)
ESOP allocation of common stock	848		848
Stock-based compensation	2,866		2,866
Other comprehensive income, net of tax	(2,751)					(2,751)
Balance (in shares) at Dec. 31, 2021		84,488			28,184
Balance at Dec. 31, 2021	812,385	$ 21,122	605,867	684,557	$ (427,736)	(48,728)	(22,697)
Balance (in shares) at Sep. 30, 2021		84,375			27,762
Balance at Sep. 30, 2021	807,158	$ 21,094	602,181	669,998	$ (416,850)	(45,977)	(23,288)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	84,987
Other comprehensive income, net of tax	2,198
Balance (in shares) at Mar. 31, 2022		84,746			27,714
Balance at Mar. 31, 2022	883,214	$ 21,187	603,624	744,894	$ (420,606)	(43,779)	(22,106)
Balance (in shares) at Dec. 31, 2021		84,488			28,184
Balance at Dec. 31, 2021	812,385	$ 21,122	605,867	684,557	$ (427,736)	(48,728)	(22,697)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	65,689			65,689
Dividend	(5,352)			(5,352)
Amortization of deferred compensation	591						591
Equity awards granted, net (in shares)		258			(470)
Equity awards granted, net	0	$ 65	(7,195)		$ 7,130
ESOP allocation of common stock	638		638
Stock-based compensation	4,314		4,314
Other comprehensive income, net of tax	4,949					4,949
Balance (in shares) at Mar. 31, 2022		84,746			27,714
Balance at Mar. 31, 2022	$ 883,214	$ 21,187	$ 603,624	$ 744,894	$ (420,606)	$ (43,779)	$ (22,106)

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue	$ 779,617	$ 574,682	$ 1,371,366	$ 1,116,205
Cost of goods and services	518,974	413,476	944,881	790,863
Gross profit	260,643	161,206	426,485	325,342
Selling, general and administrative expenses	157,838	117,559	285,190	229,268
Income from operations	102,805	43,647	141,295	96,074
Other income (expense)
Interest expense	(21,408)	(15,831)	(37,089)	(31,521)
Interest income	32	304	65	348
Other, net	1,675	1,081	3,056	1,438
Total other expense, net	(19,701)	(14,446)	(33,968)	(29,735)
Income before taxes from continuing operations	83,104	29,201	107,327	66,339
Provision for income taxes	24,533	11,082	31,851	22,790
Income from continuing operations	58,571	18,119	75,476	43,549
Discontinued operations:
Income (loss) from operations of discontinued operations	694	(1,341)	3,708	690
Provision (benefit) for income taxes	(6,424)	(334)	(5,803)	(2,373)
Income (loss) from discontinued operations	7,118	(1,007)	9,511	3,063
Net income	$ 65,689	$ 17,112	$ 84,987	$ 46,612
Basic earnings per common share:
Income from continuing operations (in dollars per share)	$ 1.13	$ 0.36	$ 1.47	$ 0.86
Income (loss) from discontinued operations (in dollars per share)	0.14	(0.02)	0.18	0.06
Basic earnings per common share (in dollars per share)	$ 1.27	$ 0.34	$ 1.65	$ 0.92
Basic weighted-average shares outstanding (in shares)	51,668	50,838	51,423	50,717
Diluted earnings per common share:
Income from continuing operations (in dollars per share)	$ 1.10	$ 0.34	$ 1.41	$ 0.82
Income (loss) from discontinued operations (in dollars per share)	0.13	(0.02)	0.18	0.06
Diluted earnings per common share (in dollars per share)	$ 1.23	$ 0.32	$ 1.59	$ 0.88
Diluted weighted-average shares outstanding (in shares)	53,430	53,264	53,602	53,211
Dividends paid per common share (in dollars per share)	$ 0.09	$ 0.08	$ 0.18	$ 0.16
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	$ 6,049	$ 1,739	$ 3,730	$ 13,862
Pension and other post retirement plans	140	1,245	808	2,951
Change in cash flow hedges	(1,240)	1,791	(2,340)	1,103
Total other comprehensive income, net of taxes	4,949	4,775	2,198	17,916
Comprehensive income, net	$ 70,638	$ 21,887	$ 87,185	$ 64,528

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 84,987	$ 46,612
Net income from discontinued operations	(9,511)	(3,063)
Adjustments to reconcile net income to net cash used in operating activities of continuing operations:
Depreciation and amortization	29,333	25,739
Stock-based compensation	9,959	9,501
Asset impairment charges - restructuring	806	2,690
Provision for losses on accounts receivable	578	194
Amortization of debt discounts and issuance costs	1,566	1,349
Fair value step-up of acquired inventory sold	2,701	0
Deferred income taxes	2,883	2,215
(Gain) loss on sale of assets and investments	(118)	151
Change in assets and liabilities, net of assets and liabilities acquired:
Increase in accounts receivable	(177,347)	(65,398)
Increase in inventories	(106,534)	(74,661)
(Increase) decrease in prepaid and other assets	6,063	(842)
Increase (decrease) in accounts payable, accrued liabilities, income taxes payable and operating lease liabilities	(18,524)	8,702
Other changes, net	525	2,400
Net cash used in operating activities - continuing operations	(172,633)	(44,411)
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property, plant and equipment	(22,030)	(17,835)
Acquired businesses, net of cash acquired	(851,464)	(2,242)
Proceeds (payments) from investments	14,923	(2,138)
Proceeds from the sale of property, plant and equipment	32	82
Other, net	0	27
Net cash used in investing activities - continuing operations	(858,539)	(22,106)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid	(10,091)	(8,678)
Purchase of shares for treasury	(10,886)	(2,909)
Proceeds from long-term debt	975,291	14,029
Payments of long-term debt	(37,906)	(7,573)
Financing costs	(16,457)	(571)
Other, net	(27)	(214)
Net cash provided by ( used) in financing activities - continuing operations	899,924	(5,916)
CASH FLOWS FROM DISCONTINUED OPERATIONS:
Net cash provided by operating activities	9,846	17,058
Net cash provided by (used in) investing activities	(1,445)	11,323
Net cash provided by discontinued operations	8,401	28,381
Effect of exchange rate changes on cash and equivalents	(3,513)	1,527
NET DECREASE IN CASH AND EQUIVALENTS	(126,360)	(42,525)
CASH AND EQUIVALENTS AT BEGINNING OF PERIOD	248,653	218,089
CASH AND EQUIVALENTS AT END OF PERIOD	$ 122,293	$ 175,564

DESCRIPTION OF BUSINESS AND BAS

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	6 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION About Griffon Corporation Griffon Corporation (the “Company”, “Griffon”, "we" or "us") is a diversified management and holding company that conducts business through wholly-owned subsidiaries. Griffon oversees the operations of its subsidiaries, allocates resources among them and manages their capital structures. Griffon provides direction and assistance to its subsidiaries in connection with acquisition and growth opportunities as well as in connection with divestitures. In order to further diversify, Griffon also seeks out, evaluates and, when appropriate, will acquire additional businesses that offer potentially attractive returns on capital. The Company was founded in 1959, is a Delaware corporation headquartered in New York, N.Y. and is listed on the New York Stock Exchange (NYSE:GFF). On September 27, 2021, Griffon announced it is exploring strategic alternatives for its Defense Electronics ("DE") segment, which consists of its Telephonics subsidiary, and on April 18, 2022, Griffon entered into a definitive agreement to sell Telephonics to TTM Technologies, Inc. ("TTM") for $330,000 in cash. The transaction is expected to close within the second calendar quarter of 2022. As a result, Griffon classified the results of operations of the Telephonics business as a discontinued operation in the Consolidated Statements of Operations for all periods presented and classified the related assets and liabilities associated with the discontinued operation as held for sale in the consolidated balance sheets. Accordingly, all references made to results and information in this Quarterly Report on Form 10-Q are to Griffon's continuing operations, unless noted otherwise. Telephonics is recognized globally as a leading provider of highly sophisticated intelligence, surveillance and communications solutions that are deployed across a wide range of land, sea and air applications. Telephonics designs, develops, manufactures and provides logistical support and lifecycle sustainment services to defense, aerospace and commercial customers worldwide. On January 24, 2022, Griffon acquired Hunter Fan Company (“Hunter”), a market leader in residential ceiling, commercial, and industrial fans, from MidOcean Partners (“MidOcean”) for a contractual purchase price of approximately $845,000, subject to customary post-closing adjustments. Hunter, which is part of Griffon's Consumer and Professional Products segment, complements and diversifies our portfolio of leading consumer brands and products. The acquisition of Hunter was primarily financed with a new $800,000 seven Griffon now conducts its operations through two reportable segments: • Consumer and Professional Products (“CPP”) is a leading North American manufacturer and a global provider of branded consumer and professional tools; residential, industrial and commercial fans; home storage and organization products; and products that enhance indoor and outdoor lifestyles. CPP sells products globally through a portfolio of leading brands including AMES, since 1774, Hunter, since 1886, True Temper, and ClosetMaid. • Home and Building Products ("HBP") conducts its operations through Clopay Corporation ("Clopay"). Founded in 1964, Clopay is the largest manufacturer and marketer of garage doors and rolling steel doors in North America. Residential and commercial sectional garage doors are sold through professional dealers and leading home center retail chains throughout North America under the brands Clopay, Ideal, and Holmes. Rolling steel door and grille products designed for commercial, industrial, institutional, and retail use are sold under the CornellCookson brand. In March 2020, the World Health Organization declared the outbreak of COVID-19 a pandemic, which continues to spread throughout the U.S. and the world. The impact from the rapidly changing U.S. and global market and economic conditions due to the COVID-19 outbreak is uncertain, with disruptions to the business of our customers and suppliers, which has impacted, and could continue to impact, our business and consolidated results of operations and financial condition. As of the date of this filing, all of Griffon's facilities are fully operational. We have implemented a variety of new policies and procedures, including additional cleaning, social distancing, staggered shifts and prohibiting or significantly restricting on-site visitors, to minimize the risk to our employees of contracting COVID-19. In the United States, we manufacture a substantial majority of the products that we sell. While this helps mitigate the effects of global supplier and transportation disruptions, we are still impacted and are unable to accurately predict the impact COVID-19 will have due to numerous uncertainties, including the severity of the disease, the duration of the outbreak, actions that may be taken by governmental authorities, the impact to our customers’ and suppliers’ businesses and other factors identified in Part II, Item 1A “Risk Factors” in this Form 10-Q. We will continue to evaluate the nature and extent of the impact to our business, consolidated results of operations, and financial condition. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information, and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all the information and footnotes required by US GAAP for complete financial statements. As such, they should be read together with Griffon’s Annual Report on Form 10-K for the year ended September 30, 2021, which provides a more complete explanation of Griffon’s accounting policies, financial position, operating results, business, properties and other matters. In the opinion of management, these financial statements reflect all adjustments considered necessary for a fair statement of interim results. Griffon’s CPP operations are seasonal; for this and other reasons, the financial results of the Company for any interim period are not necessarily indicative of the results for the full year. The condensed consolidated balance sheet information at September 30, 2021 was derived from the audited financial statements included in Griffon’s Annual Report on Form 10-K for the year ended September 30, 2021. The condensed consolidated financial statements include the accounts of Griffon and all subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. These estimates may be adjusted due to changes in economic, industry or customer financial conditions, as well as changes in technology or demand. Significant estimates include expected loss allowances for doubtful accounts receivable and returns, net realizable value of inventories, restructuring reserves, valuation of goodwill and intangible assets, sales, assumptions associated with pension benefit obligations and income or expenses, useful lives associated with depreciation and amortization of intangible and fixed assets, warranty reserves, sales incentive accruals, assumption associated with stock based compensation valuation, income taxes and tax valuation reserves, environmental reserves, legal reserves, insurance reserves, the valuation of assets and liabilities of discontinued operations, assumptions associated with valuation of acquired assets and assumed liabilities of acquired companies and the accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions Griffon may undertake in the future. Actual results may ultimately differ from these estimates. Certain amounts in the prior year have been reclassified to conform to current year presentation.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS The carrying values of cash and equivalents, accounts receivable, accounts and notes payable, and revolving credit and variable interest rate debt approximate fair value due to either the short-term nature of such instruments or the fact that the interest rate of the revolving credit and variable rate debt is based upon current market rates. Applicable accounting guidance establishes a fair value hierarchy requiring the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. The accounting guidance establishes three levels of inputs that may be used to measure fair value, as follows: • Level 1 inputs are measured and recorded at fair value based upon quoted prices in active markets for identical assets. • Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities. • Level 3 inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. On March 31, 2022, the fair values of Griffon’s 2028 senior notes and Term Loan B facility approximated $945,000 and $792,000, respectively. Fair values were based upon quoted market prices (level 1 inputs). Insurance contracts with values of $4,053 at March 31, 2022 are measured and recorded at fair value based upon quoted prices in active markets for similar assets (level 2 inputs) and are included in Prepaid and other current assets on the Consolidated Balance Sheets. Items Measured at Fair Value on a Recurring Basis At March 31, 2022, marketable debt and equity securities, measured at fair value based on quoted prices in active markets for similar assets (level 2 inputs), with a fair value of $995 ($1,000 cost basis) were included in Prepaid and other current assets on the Consolidated Balance Sheets. Realized and unrealized gains and losses on marketable debt and equity securities are included in Other income in the Consolidated Statements of Operations and Comprehensive Income (Loss). In the normal course of business, Griffon’s operations are exposed to the effects of changes in foreign currency exchange rates. To manage these risks, Griffon may enter into various derivative contracts such as foreign currency exchange contracts, including forwards and options. As of March 31, 2022, Griffon entered into several such contracts in order to lock into a foreign currency rate for planned settlements of trade and inter-company liabilities payable in U.S. dollars. At March 31, 2022, Griffon had $46,500 of Australian dollar contracts at a weighted average rate of $1.35 which qualified for hedge accounting (level 2 inputs). These hedges were all deemed effective as cash flow hedges with gains and losses related to changes in fair value deferred and recorded in Accumulated other comprehensive income (loss) ("AOCI") and Prepaid and other current assets, or Accrued liabilities, until settlement. Upon settlement, gains and losses are recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss) in Cost of goods and services ("COGS"). AOCI included deferred losses of $773 ($541, net of tax) at March 31, 2022. Upon settlement, gains of $730 and $2,263 were recorded in COGS during the three and six months ended March 31, 2022, respectively. All contracts expire in 29 to 180 days. At March 31, 2022, Griffon had 48,600 of Chinese Yuan contracts at a weighted average rate of $6.52 which qualified for hedge accounting (level 2 inputs). These hedges were all deemed effective as cash flow hedges with gains and losses related to changes in fair value deferred and recorded in Accumulated other comprehensive income (loss) ("AOCI") and Prepaid and other current assets, or Accrued liabilities, until settlement. Upon settlement, gains and losses are recognized in the Consolidated Statements of Operations and Comprehensive Income (Loss) in Cost of goods and services ("COGS"). AOCI included deferred gains of $1,140 ($832, net of tax) at March 31, 2022. Upon settlement, gains of $654 were recorded in COGS during the six months ended March 31, 2022. All contracts expire in 7 to 308 days.

REVENUE

REVENUE	6 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
REVENUE	REVENUE The Company recognizes revenue when performance obligations identified under the terms of contracts with its customers are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service, or a bundle of goods or services, to the customer, and is the unit of accounting. A contract with a customer is an agreement which both parties have approved, that creates enforceable rights and obligations, has commercial substance and with respect to which payment terms are identified and collectability is probable. Once the Company has entered into a contract or purchase order, it is evaluated to identify performance obligations. For each performance obligation, revenue is recognized when control of the promised products is transferred to the customer, or services are satisfied under the contract or purchase order, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those products or services (the transaction price). The majority of the Company’s performance obligations are recognized at a point in time related to the manufacture and sale of a broad range of products and components primarily within the CPP and HBP Segments, and revenue is recognized when title, and risk and rewards of ownership, have transferred to the customer, which is generally upon shipment. Within our discontinued operation, Defense Electronics, performance obligations are recognized over time and relate to prime or subcontractors from contract awards with the U.S. Government, as well as foreign governments and other commercial customers. Revenue recognized over time are generally accounted for using an input measure to determine progress completed at the end of the period. We believe that cumulative costs incurred to date as a percentage of estimated total contract costs at completion (cost-to-cost method) is an appropriate measure of progress towards satisfaction of performance obligations recognized over time, as it most accurately depicts the progress of our work and transfer of control to our customers. For a complete explanation of Griffon’s revenue accounting policies, this note should be read in conjunction with Griffon’s Annual Report on Form 10-K for the year ended September 30, 2021. See Note 13 - Business Segments for revenue from contracts with customers disaggregated by end markets, segments and geographic location.

ACQUISITIONS

ACQUISITIONS	6 Months Ended
	Mar. 31, 2022
Business Combination and Asset Acquisition [Abstract]
ACQUISITIONS	ACQUISITIONS Griffon continually evaluates potential acquisitions that strategically fit within its portfolio or expand its portfolio into new product lines or adjacent markets. Griffon has completed a number of acquisitions that have been accounted for as business combinations, in which assets acquired and liabilities assumed are recorded at fair value as of the date of acquisition and have resulted in the recognition of goodwill . The operating results of the business acquisitions are included in Griffon’s consolidated financial statements from the date of acquisition; in each instance, Griffon is in the process of finalizing the initial purchase price allocation unless otherwise noted. On January 24, 2022, Griffon completed the acquisition of Hunter, a market leader in residential ceiling, commercial, and industrial fans, for a contractual purchase price of $845,000, subject to customary post-closing adjustments. The acquisition was primarily financed with a new $800,000 seven Proforma For the Three Months Ended March 31, (unaudited) Proforma For the Six Months Ended March 31, (unaudited) 2022 2021 2022 2021 Revenue $ 791,038 $ 673,597 $ 1,461,877 $ 1,277,382 Income from continuing operations 55,151 24,419 75,125 50,514 Griffon did not include any material, nonrecurring proforma adjustments directly attributable to the business combination in the proforma revenue and earnings. These proforma amounts have been compiled by adding the historical results from continuing operations of Griffon, restated for classifying the results of operations of the Telephonics Corporate business as a discontinued operation, to the historical results of Hunter after applying Griffon’s accounting policies and the following proforma adjustments: • Additional depreciation and amortization that would have been charged assuming the preliminary fair value adjustments to property, plant, and equipment, and intangible assets had been applied from October 1, 2021. • Additional interest and related expenses from the new $800,000 seven • The consequential tax effects of the above adjustments using a 21.9% tax rate for the year ended September 30, 2021. The calculation of the preliminary purchase price allocation is as follows: Accounts receivable (1) $ 64,602 Inventories (2) 110,299 Other current assets 9,513 Property, plant and equipment 15,007 Operating lease right-of-use assets 12,447 Goodwill 279,658 Intangible assets 606,000 Total assets acquired $ 1,097,526 Accounts payable and accrued liabilities $ 70,768 Current portion of operating lease liabilities 3,323 Deferred tax liability (3) 161,381 Long-term operating lease liabilities 9,123 Other long-term liabilities 1,467 Total liabilities assumed $ 246,062 Total net assets acquired $ 851,464 (1) Includes $67,201 of gross accounts receivable of which $2,599 was not expected to be collected. The fair value of accounts receivable approximated book value acquired. (2) Includes $113,287 of gross inventory of which $2,988 was reserved for obsolete items. (3) Deferred tax liability recorded on intangibles assets. The amounts assigned to goodwill and major intangible asset classifications for the Hunter acquisition are as follows: Average Life (Years) Goodwill $ 279,658 N/A Indefinite-lived intangibles 356,000 N/A Definite-lived intangibles 250,000 20 Total goodwill and intangible assets $ 885,658

INVENTORIES

INVENTORIES	6 Months Ended
	Mar. 31, 2022
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories are stated at the lower of cost (first-in, first-out or average cost) or market. The following table details the components of inventory: At March 31, 2022 At September 30, 2021 Raw materials and supplies $ 164,912 $ 133,684 Work in process 48,267 48,531 Finished goods 473,832 290,579 Total $ 687,011 $ 472,794

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	6 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT The following table details the components of property, plant and equipment, net: At March 31, 2022 At September 30, 2021 Land, building and building improvements $ 163,567 $ 164,486 Machinery and equipment 546,663 520,110 Leasehold improvements 42,045 39,913 752,275 724,509 Accumulated depreciation and amortization (448,106) (431,887) Total $ 304,169 $ 292,622 Depreciation and amortization expense for property, plant and equipment was $11,782 and $10,742 for the quarters ended March 31, 2022 and 2021, respectively, and $22,476 and $20,980 for the six months ended March 31, 2022 and 2021, respectively. Depreciation included in Selling, general and administrative ("SG&A") expenses was $4,256 and $3,613 for the quarters ended March 31, 2022 and 2021, respectively, and $7,656 and $6,875 for the six months ended March 31, 2022 and 2021, respectively. Remaining components of depreciation, attributable to manufacturing operations, are included in Cost of goods and services.

CREDIT LOSSES

CREDIT LOSSES	6 Months Ended
	Mar. 31, 2022
Credit Loss [Abstract]
CREDIT LOSSES	CREDIT LOSSES The Company is exposed to credit losses primarily through sales of products and services. Trade receivables are recorded at their stated amount, less allowances for discounts, doubtful accounts and returns. The Company’s expected loss allowance methodology for trade receivables is primarily based on the aging method of the accounts receivables balances and the financial condition of its customers. The allowances represent estimated uncollectible receivables associated with potential customer defaults on contractual obligations (usually due to customers’ potential insolvency), discounts related to early payment of accounts receivables by customers and estimates for returns. The allowance for doubtful accounts includes amounts for certain customers in which a risk of default has been specifically identified, as well as an amount for customer defaults, based on a formula, when it is determined the risk of some default is probable and estimable, but cannot yet be associated with specific customers. Allowance for discounts and returns are recorded as a reduction of revenue and the provision related to the allowance for doubtful accounts is recorded in SG&A expenses. The Company also considers current and expected future economic and market conditions, such as the COVID-19 pandemic, when determining any estimate of credit losses. Generally, estimates used to determine the allowance are based on assessment of anticipated payment and all other historical, current and future information that is reasonably available. All accounts receivable amounts are expected to be collected in less than one year. Based on a review of the Company's policies and procedures across all segments, including the aging of its trade receivables, recent write-off history and other factors related to future macroeconomic conditions, Griffon determined that its method to determine credit losses and the amount of its allowances for bad debts is in accordance with the accounting guidance for credit losses on financial instruments, including trade receivables, in all material respects. The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected: Six months ended March 31, 2022 2021 Beginning Balance, October 1 $ 8,787 $ 8,178 Accounts receivable, net acquired 2,599 — Provision for expected credit losses 1,889 1,234 Amounts written off charged against the allowance (10) (161) Other, primarily foreign currency translation 235 23 Ending Balance, March 31 $ 13,500 $ 9,274

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES	6 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLES	GOODWILL AND OTHER INTANGIBLES The following table provides changes in the carrying value of goodwill by segment during the six months ended March 31, 2022: At September 30, 2021 Hunter Acquisition Foreign At March 31, 2022 Consumer and Professional Products $ 234,895 $ 279,658 $ 1,717 $ 516,270 Home and Building Products 191,253 — — 191,253 Total $ 426,148 $ 279,658 $ 1,717 $ 707,523 The following table provides the gross carrying value and accumulated amortization for each major class of intangible assets: At March 31, 2022 At September 30, 2021 Gross Carrying Amount Accumulated Average Gross Carrying Amount Accumulated Customer relationships & other $ 438,693 $ 82,866 23 $ 187,732 $ 75,794 Technology and patents 13,613 2,702 13 13,429 2,439 Total amortizable intangible assets 452,306 85,568 201,161 78,233 Trademarks 582,992 — 227,097 — Total intangible assets $ 1,035,298 $ 85,568 $ 428,258 $ 78,233 The gross carrying amount of intangible assets was impacted by $563 related to foreign currency translation. Amortization expense for intangible assets was $4,470 and $2,407 for the quarters ended March 31, 2022 and 2021, respectively, and $6,857 and $4,759 for the six months ended March 31, 2022 and 2021, respectively. The increase in intangible assets and amortization is related to the Hunter acquisition. Amortization expense for the remainder of 2022 and the next five fiscal years and thereafter, based on current intangible balances and classifications, is estimated as follows: 2022 - $13,600; 2023 - $22,100; 2024 - $22,100; 2025 - $22,100; 2026 - $22,100; 2027 - $22,100; thereafter $242,638.

INCOME TAXES

INCOME TAXES	6 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES During the quarter ended March 31, 2022, the Company recognized a tax provision of $24,533 on income before taxes from continuing operations of $83,104, compared to a tax provision of $11,082 on income before taxes from continuing operations of $29,201 in the comparable prior year quarter. The current year quarter results included restructuring charges of $4,766 ($3,496, net of tax), acquisition costs of $6,708 ($6,146, net of tax), proxy expenses of $4,661 ($3,591, net of tax), fair value step-up of acquired inventory sold of $2,701 ($2,007, net of tax), and discrete and certain other tax benefits, net, that affect comparability of $693. The prior year quarter results included restructuring charges of $7,502 ($5,605, net of tax), and discrete tax and certain other tax provisions, net, that affect comparability of $1,417. Excluding these items, the effective tax rates for the quarters ended March 31, 2022 and 2021 were 28.3% and 31.5%, respectively. During the six months ended March 31, 2022, the Company recognized a tax provision of $31,851 on income before taxes of $107,327, compared to a tax provision of $22,790 on income before taxes of $66,339 in the comparable prior year period. The six month period ended March 31, 2022 included restructuring charges of $6,482 ($4,826, net of tax), acquisition costs of $9,303 ($8,149, net of tax), proxy expenses of $6,952 ($5,359, net of tax), fair value step-up of acquired inventory sold of $2,701 ($2,007, net of tax), and discrete and certain other tax benefits, net, that affect comparability of $1,574.

LONG-TERM DEBT

LONG-TERM DEBT	6 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
LONG-TERM DEBT	LONG-TERM DEBT At March 31, 2022 At September 30, 2021 Outstanding Balance Original Issuer Premium/(Discount) Capitalized Fees & Expenses Balance Sheet Coupon Interest Rate Outstanding Balance Original Issuer Premium/(Discount) Capitalized Fees & Expenses Balance Sheet Coupon Interest Rate Senior notes due 2028 (a) $ 1,000,000 $ 290 (12,257) $ 988,033 5.75 % $ 1,000,000 $ 315 $ (13,293) $ 987,022 5.75 % Term Loan B 2029 (b) 800,000 (1,970) (15,235) 782,795 Variable — — — — — n/a Revolver due 2025 (b) 153,146 — (1,473) 151,673 Variable 13,483 — (1,718) 11,765 Variable Finance lease - real estate (c) 13,757 — — 13,757 Variable 14,594 — (4) 14,590 Variable Non US lines of credit (d) 11,713 — (9) 11,704 Variable 3,012 — (17) 2,995 Variable Non US term loans (d) 15,948 — (52) 15,896 Variable 25,684 — (91) 25,593 Variable Other long term debt (e) 2,991 — (14) 2,977 Variable 3,733 — (15) 3,718 Variable Totals 1,997,555 (1,680) (29,040) 1,966,835 1,060,506 315 (15,138) 1,045,683 less: Current portion (25,110) — — (25,110) (12,486) — — (12,486) Long-term debt $ 1,972,445 $ (1,680) $ (29,040) $ 1,941,725 $ 1,048,020 $ 315 $ (15,138) $ 1,033,197 Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Effective Interest Rate Cash Interest Amort. Debt (Premium)/Discount Amort. Debt Issuance Costs & Other Fees Total Interest Expense Effective Interest Rate Cash Interest Amort. Debt Amort. Total Interest Expense Senior notes due 2028 (a) 6.0 % $ 14,375 $ (12) $ 518 $ 14,881 6.0 % $ 14,375 $ (12) $ 529 $ 14,892 Term Loan B due 2029 (b) 3.4 % 4,767 30 232 5,029 n/a — — — — Revolver due 2025 (b) Variable 990 — 123 1,113 Variable 287 — 122 409 Finance lease - real estate (c) 5.6 % 192 — — 192 5.9 % 224 — 7 231 Non US lines of credit (d) Variable 7 — 3 10 Variable 4 — 4 8 Non US term loans (d) Variable 185 — 18 203 Variable 163 — 18 181 Other long term debt (e) Variable 61 — — 61 Variable 115 — 1 116 Capitalized interest (81) — — (81) (6) — — (6) Totals $ 20,496 $ 18 $ 894 $ 21,408 $ 15,162 $ (12) $ 681 $ 15,831 (a) During 2020, Griffon issued, at par, $1,000,000 of 5.75% Senior Notes due in 2028 (the “2028 Senior Notes”). Proceeds from the 2028 Senior Notes were used to redeem $1,000,000 of 5.25% Senior Notes due 2022. As of March 31, 2022, outstanding 2028 Senior Notes due totaled $1,000,000; interest is payable semi-annually on March 1 and September 1. The 2028 Senior Notes are senior unsecured obligations of Griffon guaranteed by certain domestic subsidiaries, and subject to certain covenants, limitations and restrictions. The 2028 Senior Notes were registered under the Securities Act of 1933, as amended (the "Securities Act") via an exchange offer. The fair value of the 2028 Senior Notes approximated $945,000 on March 31, 2022 based upon quoted market prices (level 1 inputs). In connection with these transactions, Griffon capitalized $16,448 of underwriting fees and other expenses incurred related to the issuance and exchange of the 2028 Senior Notes, which is being amortized over the term of such notes, and at March 31, 2022, $12,257 remained to be amortized. (b) On January 24, 2022, Griffon amended and restated its Revolving Credit Facility (as amended, "Credit Agreement") to provide for a new $800,000 Term Loan B facility, due January 24, 2029, in addition to its current $400,000 revolving credit facility ("Revolver"), and replaced LIBOR with SOFR (Secured Overnight Financing Rate). The fair value of the Term Loan B facility approximated $792,000 on March 31, 2022 based upon quoted market prices (level 1 inputs). The Term Loan B contains a SOFR floor of 0.50% and a current spread of 2.75%, for a total current interest rate of 3.25%. The Original Issue Discount for the Term Loan B was 99.75%. Additionally, there are two interest rate step-downs tied to achieving decreased secured leverage ratio thresholds. The Term Loan B facility requires nominal quarterly principal payments equal to 0.25% of the original outstanding principal amount, beginning with the quarter ended June 30, 2022; potential additional annual principal payments based on a percentage of excess cash flow and certain secured leverage thresholds starting with the fiscal year ending September 30, 2023; and a final balloon payment due at maturity. Term Loan B borrowings may generally be repaid without penalty but may not be re-borrowed. The Term Loan B facility is subject to the same affirmative and negative covenants that apply to the Revolver, but is not subject to any financial maintenance covenants. Term Loan B borrowings are secured by the same collateral as the Revolver. In connection with this amendment, Griffon capitalized $15,466 of underwriting fees and other expenses incurred, which are being amortized over the term of the loan. At March 31, 2022, $15,235 remained to be amortized. The Revolver's maximum borrowing availability is $400,000 and it matures on March 22, 2025. The Revolver includes a letter of credit sub-facility with a limit of $100,000; a multi-currency sub-facility of $200,000; and contains a customary accordion feature that permits us to request, subject to each lender's consent, an increase in the maximum aggregate amount that can be borrowed by up to an additional $100,000. In addition, on December 9, 2021, Griffon replaced the Revolver GBP LIBOR benchmark rate with a Sterling Overnight Index Average ("SONIA"). Borrowings under the Revolver may be repaid and re-borrowed at any time. Interest is payable on borrowings at either a SOFR, SONIA or base rate benchmark rate, plus an applicable margin, which adjusts based on financial performance. Current margins are 1.00% for base rate loans, 2.00% for SOFR loans and 2.00% for SONIA loans. The Revolver has certain financial maintenance tests including a maximum total leverage ratio, a maximum senior secured leverage ratio and a minimum interest coverage ratio, as well as customary affirmative and negative covenants, and events of default. The negative covenants place limits on Griffon's ability to, among other things, incur indebtedness, incur liens, and make restricted payments and investments. Both the Revolver and Term Loan B borrowings under the Credit Agreement are guaranteed by Griffon’s material domestic subsidiaries and are secured, on a first priority basis, by substantially all domestic assets of the Company and the guarantors, and a pledge of not greater than 65% of the equity interest in Griffon’s material, first-tier foreign subsidiaries. At March 31, 2022, there were $153,146 of outstanding borrowings under the Revolver; outstanding standby letters of credit were $13,815; and $233,039 was available, subject to certain loan covenants, for borrowing at that date. (c) Griffon has one finance lease outstanding for real estate located in Ocala, Florida. The lease matures in 2025 and bears interest at a fixed rate of approximately 5.6%. The Ocala, Florida lease contains two five (d) In November 2012, Garant G.P. (“Garant”), a Griffon wholly owned subsidiary, entered into a CAD 15,000 ($12,018 as of March 31, 2022) revolving credit facility. The facility accrues interest at LIBOR (USD) or the Bankers Acceptance Rate (CDN) plus 1.3% per annum (1.75% LIBOR USD and 2.38% Bankers Acceptance Rate CDN as of March 31, 2022). The revolving facility matures in October 2022. Garant is required to maintain a certain minimum equity. At March 31, 2022, there were no outstanding borrowings under the revolving credit facility with CAD 15,000 ($12,018 as of March 31, 2022) available. During the period ended March 31,2022, Griffon Australia Holdings Pty Ltd and its Australian subsidiaries (collectively, "Griffon Australia") amended its AUD 18,375 term loan, AUD 20,000 revolver and AUD 15,000 receivable purchase facility agreement that was entered into in July 2016 and further amended in fiscal 2020. Griffon Australia paid off the term loan in the amount of AUD 9,625 and canceled the AUD 20,000 revolver. The amendment refinanced the existing AUD 15,000 receivable purchase facility. The receivable purchase facility matures in March 2023, but is renewable upon mutual agreement with the lender. The receivable purchase facility accrues interest at BBSY (Bank Bill Sap Rate) plus 1.25%, respectively, per annum (1.31% at March 31, 2022). At March 31, 2022, there was no balance outstanding under the receivable purchase facility with AUD 15,000 ($11,273 as of March 31, 2022) available. The receivable purchase facility is secured by substantially all of the assets of Griffon Australia and its subsidiaries. Griffon Australia is required to maintain a certain minimum equity level. In July 2018, The AMES Companies UK Ltd and its subsidiaries (collectively, "AMES UK") entered into a GBP 14,000 term loan, GBP 4,000 mortgage loan and GBP 5,000 revolver. The term loan and mortgage loan require quarterly principal payments of GBP 438 and GBP 105 plus interest, respectively, and have balloon payments due upon maturity, July 2023, of GBP 7,088 and GBP 2,349, respectively. Effective in January 2022, the Term Loan and Mortgage Loan were amended to replace GBP LIBOR with SONIA. The Term Loan and Mortgage Loans each accrue interest at the SONIA Rate plus 1.92% (2.61% at March 31, 2022). The revolving facility accrues interest at the Bank of England Base Rate plus 3.25% (4.00% as of March 31, 2022). The revolving credit facility matures in July 2022, but it is renewable upon mutual agreement with the lender. As of March 31, 2022, the revolver had an outstanding balance of GBP 2,827 ($3,713 as of March 31, 2022) while the term and mortgage loan balances amounted to GBP 12,145 ($15,948 as of March 31, 2022). The revolver and the term loan are both secured by substantially all of the assets of AMES UK and its subsidiaries. AMES UK is subject to a maximum leverage ratio and a minimum fixed charges cover ratio. During the period ended March 31, 2022, AMES UK entered into a $8,500 trade loan facility agreement. The trade loan facility has a maximum loan period of 135 days and is due on June 29, 2022. The trade facility accrues interest at the Mid-point of the FED Target Range plus 2.50% (2.88% as of March 31, 2022). The trade facility had an outstanding balance of $8,000 as of March 31, 2022. (e) Other long-term debt primarily consists of a loan with the Pennsylvania Industrial Development Authority, with the balance consisting of finance leases. At March 31, 2022, Griffon and its subsidiaries were in compliance with the terms and covenants of all credit and loan agreements.

SHAREHOLDERS' EQUITY

SHAREHOLDERS' EQUITY	6 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
SHAREHOLDERS' EQUITY	SHAREHOLDERS’ EQUITY During the six months ended March 31, 2022, the Company paid two quarterly cash dividends of $0.09 per share each. During 2021, the Company paid a quarterly cash dividend of $0.08 per share, totaling $0.32 per share for the year. A dividend payable was established for the holders of restricted shares; such dividends will be released upon vesting of the underlying restricted shares. On April 27, 2022, the Board of Directors declared a quarterly cash dividend of $0.09 per share, payable on June 16, 2022 to shareholders of record as of the close of business on May 19, 2022. On January 29, 2016, shareholders approved the Griffon Corporation 2016 Equity Incentive Plan (the "Original Incentive Plan") pursuant to which, among other things, under which awards of performance shares, performance units, stock options, stock appreciation rights, restricted shares, restricted stock units, deferred shares and other stock-based awards may be granted. On January 31, 2018, shareholders approved Amendment No. 1 to the Original Incentive Plan pursuant to which, among other things, 1,000,000 shares were added to the Original Incentive Plan; and on January 30, 2020, shareholders approved Amendment No. 2 to the Original Incentive Plan, pursuant to which 1,700,000 shares were added to the Original Incentive Plan. On February 17, 2022, shareholders approved the Amended and Restated 2016 Equity Incentive Plan (the “Amended Incentive Plan”), which amended and restated the Original Incentive Plan and pursuant to which, among other things, 1,200,000 shares were added to the Original Incentive Plan. Options granted under the Amended Incentive Plan may be either “incentive stock options” or nonqualified stock options, generally expire ten years after the date of grant and are granted at an exercise price of not less than 100% of the fair market value at the date of grant. The maximum number of shares of common stock available for award under the Amended Incentive Plan is 6,250,000 (600,000 of which may be issued as incentive stock options), plus (i) any shares that were reserved for issuance under the Original Incentive Plan as of the effective date of the Original Incentive Plan, and (ii) any shares underlying awards outstanding on such date under the 2011 Incentive Plan that were subsequently canceled or forfeited. As of March 31, 2022, there were 867,180 shares available for grant. Compensation expense for restricted stock and restricted stock units is recognized ratably over the required service period based on the fair value of the grant, calculated as the number of shares granted multiplied by the stock price on the date of grant and, for performance shares, the likelihood of achieving the performance criteria. Compensation expense for restricted stock granted to two senior executives is calculated as the maximum number of shares granted, upon achieving certain performance criteria, multiplied by the stock price as valued by a Monte Carlo Simulation Model. Compensation cost related to stock-based awards with graded vesting, generally over a period of three During the first quarter of 2022, Griffon granted 236,973 shares of restricted stock and restricted stock units. This included 218,162 shares of restricted stock and restricted stock units, subject to certain performance conditions, with vesting periods of thirty-four months, with a total fair value of $6,285, or a weighted average fair value of $28.81 per share. Furthermore, this included an 18,811 shares of restricted stock award granted to one executive, with a vesting period of three years and a total fair value of $507 or a weighted average fair value of $26.97 per share. During the second quarter of 2022, Griffon granted 711,725 shares of restricted stock. This included 199,195 shares of restricted stock to nine executives with a vesting period of three years, with a total fair value of $1,494, or a weighted average fair value of $22.50 per share. This also included 454,146 shares of restricted stock granted to two senior executives with a vesting period of thirty-four months and a two The following table summarizes the Company’s compensation expense relating to all stock-based incentive plans: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Restricted stock $ 4,314 $ 4,286 $ 8,204 $ 7,714 ESOP 778 1,007 1,755 1,787 Total stock based compensation $ 5,092 $ 5,293 $ 9,959 $ 9,501 On each of August 3, 2016 and August 1, 2018, Griffon’s Board of Directors authorized the repurchase of up to $50,000 of Griffon’s outstanding common stock. Under this share repurchase program, the Company may purchase shares in the open market, including pursuant to a 10b5-1 plan, or in privately negotiated transactions. During the six months ended March 31, 2022, Griffon did not purchase any shares of common stock under these repurchase programs. As of March 31, 2022, an aggregate of $57,955 remains under Griffon's Board authorized repurchase programs.

EARNINGS PER SHARE (EPS)

EARNINGS PER SHARE (EPS)	6 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
EARNINGS PER SHARE (EPS)	EARNINGS PER SHARE (EPS) Basic EPS was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding during the period. Diluted EPS was calculated by dividing income available to common shareholders by the weighted average number of shares of common stock outstanding plus additional common shares that could be issued in connection with stock based compensation. The following table is a reconciliation of the share amounts (in thousands) used in computing earnings per share: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Common shares outstanding 57,032 56,684 57,032 56,684 Unallocated ESOP shares (1,769) (1,961) (1,769) (1,961) Non-vested restricted stock (3,533) (3,822) (3,533) (3,822) Impact of weighted average shares (62) (63) (307) (184) Weighted average shares outstanding - basic 51,668 50,838 51,423 50,717 Incremental shares from stock based compensation 1,762 2,426 2,179 2,494 Weighted average shares outstanding - diluted 53,430 53,264 53,602 53,211

BUSINESS SEGMENTS

BUSINESS SEGMENTS	6 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
BUSINESS SEGMENTS	BUSINESS SEGMENTS Griffon reports its operations through two reportable segments, as follows: • Consumer and Professional Products (“CPP”) is a leading North American manufacturer and a global provider of branded consumer and professional tools; residential, industrial and commercial fans; home storage and organization products; and products that enhance indoor and outdoor lifestyles. CPP sells products globally through a portfolio of leading brands including AMES, since 1774, Hunter, since 1886, True Temper, and ClosetMaid. • Home and Building Products ("HBP") conducts its operations through Clopay. Founded in 1964, Clopay is the largest manufacturer and marketer of garage doors and rolling steel doors in North America. Residential and commercial sectional garage doors are sold through professional dealers and leading home center retail chains throughout North America under the brands Clopay, Ideal, and Holmes. Rolling steel door and grille products designed for commercial, industrial, institutional, and retail use are sold under the CornellCookson brand. Information on Griffon’s reportable segments from continuing operations is as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, REVENUE 2022 2021 2022 2021 Consumer and Professional Products $ 411,012 $ 331,871 $ 694,185 $ 622,913 Home and Building Products 368,605 242,811 677,181 493,292 Total revenue $ 779,617 $ 574,682 $ 1,371,366 $ 1,116,205 Disaggregation of Revenue Revenue from contracts with customers is disaggregated by end markets, segments and geographic location, as it more accurately depicts the nature and amount of the Company’s revenue. The following table presents revenue disaggregated by end market and segment: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Residential repair and remodel $ 50,478 $ 50,560 $ 89,237 $ 96,160 Retail 216,836 153,746 347,071 292,994 Residential new construction 12,019 14,540 22,346 28,055 Industrial 21,068 9,958 32,374 19,489 International excluding North America 110,611 103,067 203,157 186,215 Total Consumer and Professional Products 411,012 331,871 694,185 622,913 Residential repair and remodel 172,377 120,827 317,462 246,942 Commercial construction 157,376 94,751 288,165 190,690 Residential new construction 38,852 27,233 71,554 55,660 Total Home and Building Products 368,605 242,811 677,181 493,292 Total Consolidated Revenue $ 779,617 $ 574,682 $ 1,371,366 $ 1,116,205 The following table presents revenue disaggregated by geography based on the location of the Company's customer: For the Three Months Ended March 31, 2022 2021 CPP HBP Total CPP HBP Total United States $ 264,747 $ 352,809 $ 617,556 $ 205,368 $ 230,955 $ 436,323 Europe 46,783 7 46,790 38,965 41 39,006 Canada 31,029 13,877 44,906 21,778 9,797 31,575 Australia 62,189 — 62,189 63,691 — 63,691 All other countries 6,264 1,912 8,176 2,069 2,018 4,087 Consolidated revenue $ 411,012 $ 368,605 $ 779,617 $ 331,871 $ 242,811 $ 574,682 For the Six Months Ended March 31, 2022 2022 2021 CPP HBP Total CPP HBP Total United States $ 429,646 $ 647,385 $ 1,077,031 $ 388,810 $ 467,486 $ 856,296 Europe 65,113 44 65,157 52,121 41 52,162 Canada 53,657 25,891 79,548 43,893 21,285 65,178 Australia 136,537 — 136,537 133,231 — 133,231 All other countries 9,232 3,861 13,093 4,858 4,480 9,338 Consolidated revenue $ 694,185 $ 677,181 $ 1,371,366 $ 622,913 $ 493,292 $ 1,116,205 Griffon evaluates performance and allocates resources based on each segment's operating results before interest income and expense, income taxes, depreciation and amortization, unallocated amounts (mainly corporate overhead), restructuring charges, loss from debt extinguishment and acquisition related expenses, as well as other items that may affect comparability, as applicable (“Segment adjusted EBITDA”). Griffon believes this information is useful to investors for the same reason. The following table provides a reconciliation of Segment adjusted EBITDA to Income before taxes from continuing operations: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Segment adjusted EBITDA: Consumer and Professional Products $ 47,844 $ 37,423 $ 64,058 $ 70,136 Home and Building Products 104,474 40,060 160,771 88,429 Segment adjusted EBITDA 152,318 77,483 224,829 158,565 Unallocated amounts, excluding depreciation * (12,750) (12,104) (25,707) (24,733) Adjusted EBITDA 139,568 65,379 199,122 133,832 Net interest expense (21,376) (15,527) (37,024) (31,173) Depreciation and amortization (16,252) (13,149) (29,333) (25,739) Restructuring charges (4,766) (7,502) (6,482) (10,581) Acquisition costs (6,708) — (9,303) — Proxy expenses (4,661) — (6,952) — Fair value step-up of acquired inventory sold (2,701) — (2,701) — Income before taxes from continuing operations $ 83,104 $ 29,201 $ 107,327 $ 66,339 * Unallocated amounts typically include general corporate expenses not attributable to a reportable segment. For the Three Months Ended March 31, For the Six Months Ended March 31, DEPRECIATION and AMORTIZATION 2022 2021 2022 2021 Segment: Consumer and Professional Products $ 11,791 $ 8,620 $ 20,397 $ 16,819 Home and Building Products 4,324 4,379 8,662 8,720 Total segment depreciation and amortization 16,115 12,999 29,059 25,539 Corporate 137 150 274 200 Total consolidated depreciation and amortization $ 16,252 $ 13,149 $ 29,333 $ 25,739 CAPITAL EXPENDITURES Segment: Consumer and Professional Products $ 9,054 $ 6,813 $ 16,184 $ 13,720 Home and Building Products 2,403 1,998 5,752 4,113 Total segment 11,457 8,811 21,936 17,833 Corporate — 2 94 2 Total consolidated capital expenditures $ 11,457 $ 8,813 $ 22,030 $ 17,835 ASSETS At March 31, 2022 At September 30, 2021 Segment assets: Consumer and Professional Products $ 2,665,362 $ 1,377,618 Home and Building Products 714,647 666,422 Total segment assets 3,380,009 2,044,040 Corporate 138,462 283,202 Total continuing assets 3,518,471 2,327,242 Discontinued operations - held for sale 264,861 273,414 Other discontinued operations 3,691 4,029 Consolidated total $ 3,787,023 $ 2,604,685

EMPLOYEE BENEFIT PLANS

EMPLOYEE BENEFIT PLANS	6 Months Ended
	Mar. 31, 2022
Retirement Benefits [Abstract]
EMPLOYEE BENEFIT PLANS	EMPLOYEE BENEFIT PLANS Defined benefit pension expense (income) included in Other Income (Expense), net was as follows: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Interest cost $ 911 $ 745 $ 1,707 $ 1,489 Expected return on plan assets (2,835) (2,545) (5,424) (5,089) Amortization: Recognized actuarial loss 845 1,573 1,690 3,146 Net periodic expense (income) $ (1,079) $ (227) $ (2,027) $ (454)

RECENT ACCOUNTING PRONOUNCEMENT

RECENT ACCOUNTING PRONOUNCEMENTS	6 Months Ended
	Mar. 31, 2022
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING PRONOUNCEMENTS	RECENT ACCOUNTING PRONOUNCEMENTS Issued but not yet effective accounting pronouncements In October 2021, the Financial Accounting Standards Board ("FASB") issued ASU No. 2021-08, Business Combinations (Topic 805); Accounting for Contract Assets and Contract Liabilities from Contracts with Customers . This new guidance affects all entities that enter into a business combination within the scope of ASC 805-10. Under this new guidance, the acquirer should determine what contract assets and/or liabilities it would have recorded under ASC 606 (Revenue Guidance) as of the acquisition date, as if the acquirer had entered into the original contract at the same date and on the same terms as the acquirer. Under current U.S. GAAP, contract assets and contract liabilities acquired in a business combination are recorded by the acquirer at fair value. This update is effective for the Company beginning in fiscal 2023. Early adoption is permitted. The Company is currently evaluating the effects that the adoption of this guidance will have on our consolidated financial statements and related disclosures. New Accounting Standards Implemented In December 2019, the FASB issued guidance on simplifying the accounting for income taxes by clarifying and amending existing guidance related to the recognition of franchise tax, the evaluation of a step up in the tax basis of goodwill, and the effects of enacted changes in tax laws or rates in the effective tax rate computation, among other clarifications. This guidance became effective for the Company beginning in fiscal 2022. We adopted the recognition of non-income taxes on the modified retrospective basis. Adoption of this standard did not have a material impact on our consolidated financial statements and the related disclosures. In August 2018, the FASB issued guidance to clarify disclosure requirements related to defined benefit pension and other post-retirement plans. The guidance is effective for fiscal years beginning after December 15, 2020, with early adoption permitted, and was effective for the Company in our fiscal year beginning in October 1, 2021. Adoption of this standard did not have a material impact on our consolidated financial statements and the related disclosures. The Company has implemented all new accounting pronouncements that are in effect and that may impact its financial statements, and does not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on its financial position or results of operations.

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	6 Months Ended
	Mar. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]
DISCONTINUED OPERATIONS	DISCONTINUED OPERATIONS On September 27, 2021, Griffon announced it is exploring strategic alternatives for its DE segment, which consists of its Telephonics subsidiary, and on April 18, 2022, Griffon entered into a definitive agreement to sell Telephonics to TTM for $330,000 in cash. The transaction is expected to close within the second calendar quarter of 2022. In accordance with ASC 205-20 Presentation of Financial Statements: Discontinued Operations, a disposal of a component of an entity or a group of components of an entity is required to be reported as discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results when the component of an entity meets the criteria in paragraph 205-20-45-10. In the period in which the component meets held-for-sale or discontinued operations criteria, the major current assets, other assets, current liabilities, and noncurrent liabilities shall be reported as components of total assets and liabilities separate from those balances of the continuing operations. At the same time, the results of all discontinued operations , less applicable income taxes (benefit), shall be reported as components of net income (loss) separate from the net income (loss) of continuing operations. Defense Electronics (DE or Telephonics) The following amounts related to Telephonics have been segregated from Griffon's continuing operations and are reported as a discontinued operation: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Revenue $ 56,273 $ 60,150 $ 110,266 $ 127,918 Cost of goods and services 45,188 51,411 86,149 113,512 Gross profit 11,085 8,739 24,117 14,406 Selling, general and administrative expenses 10,289 9,359 20,309 19,301 Income (loss) from discontinued operations 796 (620) 3,808 (4,895) Other income (expense) Interest income, net 2 1 2 1 Gain on sale of business — (949) — 5,291 Other, net (104) 227 (102) 293 Total other income (expense) (102) (721) (100) 5,585 Income from discontinued operations before taxes $ 694 $ (1,341) $ 3,708 $ 690 Provision (benefit) for income taxes (6,424) (334) (5,803) (2,373) Income from discontinued operations $ 7,118 $ (1,007) $ 9,511 $ 3,063 During the three and six months ended March 31, 2022, Income from discontinued operations includes $2,422 and $4,214, respectively, of costs associated with consulting and stay bonuses. Depreciation and amortization was excluded from the current year results since DE is classified as a discontinued operation and, accordingly, the Company ceased depreciation and amortization in accordance with discontinued operations accounting guidelines. Depreciation and amortization would have been approximately $2,400 and $5,100 in the three and six months ended March 31, 2022, respectively. Provision (benefit) for income taxes includes $4,954 of estimated deferred tax benefits related to the anticipated disposition of the Telephonics subsidiary. The gain on sale of business relates to the divestiture of the SEG business on December 18, 2020; SEG had sales of $6,713 in the quarter ended December 31, 2020. In September 2020, a Voluntary Employee Retirement Plan was initiated, which was subsequently followed by a reduction in force in November 2020, to improve efficiencies by combining functions and responsibilities. The reduction in force initiative resulted in severance charges of approximately $2,200, recorded in the first quarter ended December 31, 2020. These actions reduced headcount by approximately 90 people. Income from discontinued operations includes charges of $5,601 recorded in fiscal 2021 primarily related to exiting older weather radar product lines. The following amounts related to Telephonics have been segregated from Griffon's continuing operations and are reported as assets and liabilities of discontinued operations held for sale in the consolidated balance sheets: At March 31, At September 30, 2022 2021 CURRENT ASSETS Accounts receivable, net $ 48,652 $ 42,020 Contract assets, net of progress payments 52,497 72,983 Inventories 87,265 83,970 Prepaid and other current assets 4,993 4,409 PROPERTY, PLANT AND EQUIPMENT, net 47,313 45,371 OPERATING LEASE RIGHT-OF-USE ASSETS 1,167 1,167 GOODWILL 17,734 17,734 INTANGIBLE ASSETS, net 131 131 OTHER ASSETS 5,109 5,629 Total Assets Held for Sale $ 264,861 $ 273,414 CURRENT LIABILITIES Accounts payable 58,681 60,486 Accrued liabilities 10,510 15,153 Current portion of operating lease liabilities 223 287 LONG-TERM OPERATING LEASE LIABILITIES 766 867 OTHER LIABILITIES 3,038 3,955 Total Liabilities Held for Sale $ 73,218 $ 80,748 Installation Services and Other Discontinued Activities The following amounts summarize the total assets and liabilities related to the Installation Services and other discontinued activities which have been segregated from Griffon’s continuing operations, and are reported as assets and liabilities of discontinued operations in the Condensed Consolidated Balance Sheets: At March 31, 2022 At September 30, 2021 Assets of discontinued operations: Prepaid and other current assets $ 497 $ 605 Other long-term assets 3,194 3,424 Total assets of discontinued operations $ 3,691 $ 4,029 Liabilities of discontinued operations: Accrued liabilities, current $ 3,312 $ 3,280 Other long-term liabilities 4,406 3,794 Total liabilities of discontinued operations $ 7,718 $ 7,074 At March 31, 2022 and September 30, 2021, Griffon’s liabilities for Installations Services and other discontinued operations primarily related to insurance claims, warranty and environmental reserves totaling liabilities of approximately $7,718 and $7,074, respectively. There was no reported revenue in the quarter and six month period ended March 31 2022 and 2021.

RESTRUCTURING CHARGES

RESTRUCTURING CHARGES	6 Months Ended
	Mar. 31, 2022
Restructuring and Related Activities [Abstract]
RESTRUCTURING CHARGES	RESTRUCTURING CHARGES In November 2019, Griffon announced the development of a next-generation business platform for CPP to enhance the growth, efficiency, and competitiveness of its U.S. operations, and on November 12, 2020, Griffon announced that CPP is broadening this strategic initiative to include additional North American facilities, the AMES United Kingdom (U.K.) and Australia businesses, and a manufacturing facility in China. On April 28, 2022, Griffon announced an accelerated timeline and reduced scope for the initiative, which will now be completed by the end of fiscal 2022. These changes reflect the rapid progress made with the initiative, and reduced investment in facilities expansion and equipment given recent significant increases in construction and equipment costs. Any remaining expenditures, after the end of fiscal 2022, including those related to the deployment of AMES' global information systems, will be included in the continuing operations of the business. Future investments in equipment, particularly for automation, will be part of normal-course annual capital expenditures. This initiative includes three key development areas. First, certain AMES U.S. and global operations will be consolidated to optimize facilities footprint and talent. Second, strategic investments in automation and facilities expansion will be made to increase the efficiency of our manufacturing and fulfillment operations, and support e-commerce growth. Third, multiple independent information systems will be unified into a single data and analytics platform, which will serve the whole AMES global enterprise. When fully implemented and the efficiencies are fully realized, we expect annual cash savings of $25,000 (previously $30,000 to $35,000). The cost to implement this new business platform, over the duration of the project, will now include one-time charges of approximately $50,000 (previously $65,000) and capital investments of approximately $15,000 (previously $65,000), net of future proceeds from the sale of exited facilities. In the quarter and six months ended March 31, 2022, CPP incurred pre-tax restructuring and related exit costs approximating $4,766 and $6,482, respectively. During the six months ended March 31, 2022, cash charges totaled $4,427 and non-cash, asset-related charges totaled $2,055; the cash charges included $2,138 for one-time termination benefits and other personnel-related costs and $2,289 for facility exit costs. Non-cash charges included a $1,766 impairment charge related to certain fixed assets at several manufacturing locations and $289 of inventory that have no recoverable value. During the six months ended March 31, 2022, headcount was reduced by 20. In the quarter and six months ended March 31, 2021, CPP incurred pre-tax restructuring and related exit costs approximating $7,502 and $10,581, respectively. During the six months ended March 31, 2021, cash charges totaled $7,891 and non-cash, asset-related charges totaled $2,690; the cash charges included $1,084 for one-time termination benefits and other personnel related costs and $6,807 for facility and lease exit costs primarily driven by the consolidation of distribution facilities. Non-cash charges of $2,690 predominantly related to inventory that have no recoverable value. A summary of the restructuring and other related charges included in Cost of goods and services and SG&A expenses in the Company's Condensed Consolidated Statements of Operations were as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Cost of goods and services $ 2,455 $ 3,337 $ 2,777 $ 3,878 Selling, general and administrative expenses 2,311 4,165 3,705 6,703 Total restructuring charges $ 4,766 $ 7,502 $ 6,482 $ 10,581 For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Personnel related costs $ 1,878 $ 722 $ 2,138 $ 1,084 Facilities, exit costs and other 1,122 4,283 2,289 6,807 Non-cash facility and other 1,766 2,497 2,055 2,690 Total $ 4,766 $ 7,502 $ 6,482 $ 10,581 The following table summarizes the accrued liabilities of the Company's restructuring actions: Cash Charges Non-Cash Personnel related costs Facilities & Facility and Other Costs Total Accrued liability at September 30, 2021 $ 418 $ 264 $ — $ 682 Q1 Restructuring charges 260 1,167 289 1,716 Q1 Cash payments (275) (1,167) — (1,442) Q1 Non-cash charges — — (289) (289) Accrued liability at December 31, 2021 $ 403 $ 264 $ — $ 667 Q2 Restructuring charges 1,878 1,122 1,766 4,766 Q2 Cash payments (1,883) (1,122) — (3,005) Q2 Non-cash charges — — (1,766) (1,766) Accrued liability at March 31, 2022 $ 398 $ 264 $ — $ 662

OTHER INCOME (EXPENSE)

OTHER INCOME (EXPENSE)	6 Months Ended
	Mar. 31, 2022
Other Income and Expenses [Abstract]
OTHER INCOME (EXPENSE)	OTHER INCOME (EXPENSE) For the quarters ended March 31, 2022 and 2021, Other income (expense) of $1,675 and $1,081, respectively, includes $168 and $320, respectively, of net currency exchange losses in connection with the translation of receivables and payables denominated in currencies other than the functional currencies of Griffon and its subsidiaries, net periodic benefit plan income of $1,079 and $227, respectively, as well as $(331) and $55, respectively, of net investment income (loss). Other income (expense) also includes rental income of $462 in each of the three months ended March 31, 2022 and 2021. Additionally, it includes royalty income of $616 for the three months ended March 31, 2022. For the six months ended March 31, 2022 and 2021, Other income (expense) of $3,056 and $1,438, respectively, includes $562 and $379, respectively, of net currency exchange losses in connection with the translation of receivables and payables denominated in currencies other than the functional currencies of Griffon and its subsidiaries, net periodic benefit plan income of $2,027 and $454, respectively, as well as $(238) and $386, respectively, of net investment income (loss). Other income (expense) also includes rental income of $924 in each of the six months ended March 31, 2022 and 2021. Additionally, it includes royalty income of $616 for the six months ended March 31, 2022.

WARRANTY LIABILITY

WARRANTY LIABILITY	6 Months Ended
	Mar. 31, 2022
Product Warranties Disclosures [Abstract]
WARRANTY LIABILITY	WARRANTY LIABILITY CPP and HBP offer warranties against product defects for periods generally ranging from one Changes in Griffon’s warranty liability, included in Accrued liabilities, were as follows: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Balance, beginning of period $ 9,572 $ 6,232 $ 7,818 $ 6,268 Warranties issued and changes in estimated pre-existing warranties 5,788 4,933 9,249 8,509 Actual warranty costs incurred (3,755) (3,245) (5,462) (6,857) Other warranty liabilities assumed from acquisitions 6,353 — 6,353 — Balance, end of period $ 17,958 $ 7,920 $ 17,958 $ 7,920

OTHER COMPREHENSIVE INCOME (LOS

OTHER COMPREHENSIVE INCOME (LOSS)	6 Months Ended
	Mar. 31, 2022
OCI, Net of Tax [Abstract]
OTHER COMPREHENSIVE INCOME (LOSS)	OTHER COMPREHENSIVE INCOME (LOSS) The amounts recognized in other comprehensive income (loss) were as follows: For the Three Months Ended March 31, 2022 2021 Pre-tax Tax Net of tax Pre-tax Tax Net of tax Foreign currency translation adjustments $ 6,049 $ — $ 6,049 $ 1,739 $ — $ 1,739 Pension and other defined benefit plans 177 (37) 140 1,585 (340) 1,245 Cash flow hedges (1,771) 531 (1,240) 2,559 (768) 1,791 Total other comprehensive income (loss) $ 4,455 $ 494 $ 4,949 $ 5,883 $ (1,108) $ 4,775 For the Six Months Ended March 31, 2022 2021 Pre-tax Tax Net of tax Pre-tax Tax Net of tax Foreign currency translation adjustments $ 3,730 $ — $ 3,730 $ 13,862 $ — $ 13,862 Pension and other defined benefit plans 1,023 (215) 808 3,735 (784) 2,951 Cash flow hedges (3,342) 1,002 (2,340) 1,576 (473) 1,103 Total other comprehensive income (loss) $ 1,411 $ 787 $ 2,198 $ 19,173 $ (1,257) $ 17,916 The components of Accumulated other comprehensive income (loss) are as follows: At March 31, 2022 At September 30, 2021 Foreign currency translation adjustments $ (15,520) $ (19,250) Pension and other defined benefit plans (27,994) (28,802) Change in Cash flow hedges (265) 2,075 $ (43,779) $ (45,977) Amounts reclassified from accumulated other comprehensive income (loss) to income were as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, Gain (Loss) 2022 2021 2022 2021 Pension amortization $ (845) $ (1,573) $ (1,690) $ (3,146) Cash flow hedges 1,384 (1,741) 2,917 (2,399) Total gain (loss) $ 539 $ (3,314) $ 1,227 $ (5,545) Tax benefit (expense) (113) 696 (257) 1,165 Total $ 426 $ (2,618) $ 970 $ (4,380)

LEASES

LEASES	6 Months Ended
	Mar. 31, 2022
Leases [Abstract]
LEASES	LEASES The Company recognizes right-of-use ("ROU") assets and lease liabilities on the balance sheet, with the exception of leases with a term of twelve months or less. The Company determines if an arrangement is a lease at inception. The ROU assets and short and long-term liabilities associated with our Operating leases are shown as separate line items on our Condensed Consolidated Balance Sheets. Finance leases are included in property, plant, and equipment, net, other accrued liabilities, and other non-current liabilities. The Company's finance leases are immaterial. ROU assets, along with any other related long-lived assets, are periodically evaluated for impairment. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. Lease payments primarily include rent and insurance costs (lease components). The Company's leases also include non-lease components such as real estate taxes and common-area maintenance costs. The Company elected the practical expedient to account for lease and non-lease components as a single component. In certain of the Company's leases, the non-lease components are variable and in accordance with the standard are therefore excluded from lease payments to determine the ROU asset. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. Our determination of the lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. For operating leases, fixed lease payments are recognized as operating lease cost on a straight-line basis over the lease term. For finance leases and impaired operating leases, the ROU asset is depreciated on a straight-line basis over the remaining lease term, along with recognition of interest expense associated with accretion of the lease liability. For leases with a lease term of 12 months or less (a "Short-term" lease), any fixed lease payments are recognized on a straight-line basis over such term, and are not recognized on the Condensed Consolidated Balance Sheets.Variable lease cost for both operating and finance leases, if any, is recognized as incurred. Components of operating lease costs are as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Fixed $ 9,906 $ 9,686 $ 19,653 $ 19,177 Variable (a), (b) 1,684 1,919 3,536 3,813 Short-term (b) 1,486 985 2,835 2,055 Total $ 13,076 $ 12,590 $ 26,024 $ 25,045 (a) Primarily relates to common-area maintenance and property taxes. (b) Not recorded on the balance sheet. Supplemental cash flow information were as follows: For the Six Months Ended March 31, 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 22,510 $ 21,223 Financing cash flows from finance leases 1,401 1,865 Total $ 23,911 $ 23,088 Supplemental Condensed Consolidated Balance Sheet information related to leases were as follows: March 31, 2022 September 30, 2021 Operating Leases: Right of use assets: Operating right-of-use assets $ 149,587 $ 144,598 Lease Liabilities: Current portion of operating lease liabilities $ 32,210 $ 29,881 Long-term operating lease liabilities 122,488 119,315 Total operating lease liabilities $ 154,698 $ 149,196 Finance Leases: Property, plant and equipment, net (1) $ 15,113 $ 16,466 Lease Liabilities: Notes payable and current portion of long-term debt $ 2,329 $ 2,347 Long-term debt, net 13,019 14,120 Total financing lease liabilities $ 15,348 $ 16,467 (1) Finance lease assets are recorded net of accumulated depreciation of $4,488 and $6,136 as of March 31, 2022 and September 30, 2021, respectively. Griffon has one finance lease outstanding for real estate located in Ocala, Florida. The lease matures in 2025 and bears interest at a fixed rate of approximately 5.6%. The Ocala, Florida lease contains two five The aggregate future maturities of lease payments for operating leases and finance leases as of March 31, 2022 are as follows (in thousands): Operating Leases Finance Leases 2022 (a) $ 20,230 $ 1,541 2023 34,959 2,893 2024 26,530 2,322 2025 23,775 2,128 2026 15,566 2,106 2027 11,677 2,074 Thereafter 54,552 5,703 Total lease payments $ 187,289 $ 18,767 Less: Imputed Interest (32,591) (3,419) Present value of lease liabilities $ 154,698 $ 15,348 (a) Excluding the six months ended March 31, 2022. Average lease terms and discount rates at March 31, 2022 were as follows: Weighted-average remaining lease term (years) Operating leases 7.6 Finance Leases 7.8 Weighted-average discount rate Operating Leases 4.36 % Finance Leases 5.49 %
LEASES	LEASES The Company recognizes right-of-use ("ROU") assets and lease liabilities on the balance sheet, with the exception of leases with a term of twelve months or less. The Company determines if an arrangement is a lease at inception. The ROU assets and short and long-term liabilities associated with our Operating leases are shown as separate line items on our Condensed Consolidated Balance Sheets. Finance leases are included in property, plant, and equipment, net, other accrued liabilities, and other non-current liabilities. The Company's finance leases are immaterial. ROU assets, along with any other related long-lived assets, are periodically evaluated for impairment. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. Lease payments primarily include rent and insurance costs (lease components). The Company's leases also include non-lease components such as real estate taxes and common-area maintenance costs. The Company elected the practical expedient to account for lease and non-lease components as a single component. In certain of the Company's leases, the non-lease components are variable and in accordance with the standard are therefore excluded from lease payments to determine the ROU asset. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. We use the implicit rate when readily determinable. Our determination of the lease term may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. For operating leases, fixed lease payments are recognized as operating lease cost on a straight-line basis over the lease term. For finance leases and impaired operating leases, the ROU asset is depreciated on a straight-line basis over the remaining lease term, along with recognition of interest expense associated with accretion of the lease liability. For leases with a lease term of 12 months or less (a "Short-term" lease), any fixed lease payments are recognized on a straight-line basis over such term, and are not recognized on the Condensed Consolidated Balance Sheets.Variable lease cost for both operating and finance leases, if any, is recognized as incurred. Components of operating lease costs are as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Fixed $ 9,906 $ 9,686 $ 19,653 $ 19,177 Variable (a), (b) 1,684 1,919 3,536 3,813 Short-term (b) 1,486 985 2,835 2,055 Total $ 13,076 $ 12,590 $ 26,024 $ 25,045 (a) Primarily relates to common-area maintenance and property taxes. (b) Not recorded on the balance sheet. Supplemental cash flow information were as follows: For the Six Months Ended March 31, 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 22,510 $ 21,223 Financing cash flows from finance leases 1,401 1,865 Total $ 23,911 $ 23,088 Supplemental Condensed Consolidated Balance Sheet information related to leases were as follows: March 31, 2022 September 30, 2021 Operating Leases: Right of use assets: Operating right-of-use assets $ 149,587 $ 144,598 Lease Liabilities: Current portion of operating lease liabilities $ 32,210 $ 29,881 Long-term operating lease liabilities 122,488 119,315 Total operating lease liabilities $ 154,698 $ 149,196 Finance Leases: Property, plant and equipment, net (1) $ 15,113 $ 16,466 Lease Liabilities: Notes payable and current portion of long-term debt $ 2,329 $ 2,347 Long-term debt, net 13,019 14,120 Total financing lease liabilities $ 15,348 $ 16,467 (1) Finance lease assets are recorded net of accumulated depreciation of $4,488 and $6,136 as of March 31, 2022 and September 30, 2021, respectively. Griffon has one finance lease outstanding for real estate located in Ocala, Florida. The lease matures in 2025 and bears interest at a fixed rate of approximately 5.6%. The Ocala, Florida lease contains two five The aggregate future maturities of lease payments for operating leases and finance leases as of March 31, 2022 are as follows (in thousands): Operating Leases Finance Leases 2022 (a) $ 20,230 $ 1,541 2023 34,959 2,893 2024 26,530 2,322 2025 23,775 2,128 2026 15,566 2,106 2027 11,677 2,074 Thereafter 54,552 5,703 Total lease payments $ 187,289 $ 18,767 Less: Imputed Interest (32,591) (3,419) Present value of lease liabilities $ 154,698 $ 15,348 (a) Excluding the six months ended March 31, 2022. Average lease terms and discount rates at March 31, 2022 were as follows: Weighted-average remaining lease term (years) Operating leases 7.6 Finance Leases 7.8 Weighted-average discount rate Operating Leases 4.36 % Finance Leases 5.49 %

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	6 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal and environmental Peekskill Site. Lightron Corporation (“Lightron”), a wholly-owned subsidiary of Griffon, once conducted operations at a location in the Town of Cortlandt, New York, just outside the city of Peekskill, New York (the “Peekskill Site”) which was owned by ISC Properties, Inc. (“ISCP”), a wholly-owned subsidiary of Griffon, for approximately three years. ISCP sold the Peekskill Site in November 1982. On May 15, 2019 the United States Environmental Protection Agency ("EPA") added the Peekskill Site to the National Priorities List under CERCLA and has since announced that it is performing a Remedial Investigation/Feasibility Study ("RI/FS"). On August 25, 2020, the EPA sent a letter to several parties, including Lightron and ISCP, requesting that each such party inform the EPA as to whether it would be willing to enter into discussions regarding implementation of the RI/FS. The EPA also sent a request for information under Section 104(e) of CERCLA to each party. Lightron and ISCP have informed the EPA that they are willing to participate in discussions regarding implementation of the RI/FS. Lightron and ISCP have also submitted responses to certain items contained in the Section 104(e) information request, with additional responses to follow. The current owner of the property, which acquired the Peekskill Site from ISCP in 1982 and has no relationship with Lightron or ISCP, has also informed the EPA that it is willing to discuss implementation of the RI/FS, and has also received, and submitted certain information in response to, a Section 104(e) information request. The EPA may decide to implement the RI/FS, on its own or through the use of consultants, may reach agreement with one or more parties to perform the RI/FS, or may offer to negotiate with one or more parties to accept a settlement addressing the potential liability of such parties for investigation and/or remediation at the Peekskill Site. Should the EPA implement the RI/FS, or perform further studies and/or subsequently remediate the site, without first reaching agreement with one or more relevant parties, the EPA would likely seek reimbursement for the costs incurred from such parties. Lightron has not engaged in any operations in over three decades. ISCP functioned solely as a real estate holding company, and has not held any real property in over three decades. Griffon does not acknowledge any responsibility to perform any investigation or remediation at the Peekskill Site. One of Griffon’s insurers is defending Lightron, ISCP and Griffon subject to a reservation of rights. Union Fork and Hoe, Frankfort, NY site. The former Union Fork and Hoe property in Frankfort, New York was acquired by AMES in 2006 as part of a larger acquisition, and has historic site contamination involving chlorinated solvents, petroleum hydrocarbons and metals. AMES entered into an Order on Consent with the New York State Department of Environmental Conservation (“DEC”). While the Order is without admission or finding of liability or acknowledgment that there has been a release of hazardous substances at the site, the Order required AMES to perform a remedial investigation of certain portions of the property and to recommend a remediation option. In 2011, remediation of chlorinated solvents in the groundwater was completed to the satisfaction of DEC. In June 2020, AMES completed the remediation required by the Record of Decision issued by DEC in 2019 ("ROD") and filed a Construction Completion Report, a Site Management Plan and an environmental easement with DEC. While AMES was implementing the remediation required by the ROD, DEC requested additional investigation of a small area on the site and of an area adjacent to the site perimeter. AMES investigated the on-site area and has completed remediation of that small area under a workplan approved by DEC. AMES also completed a workplan approved by DEC to investigate the areas adjacent to the site perimeter, and is now performing a statistical analysis to determine the area, if any, required to be remediated. AMES has a number of defenses to liability in this matter, including its rights under a previous Consent Judgment entered into between DEC and a predecessor of AMES relating to the site. AMES’ insurer has accepted AMES’ claim for a substantial portion of the costs incurred and to be incurred for both the on-site and off-site activities. Memphis, TN site. Hunter Fan Company (“Hunter”) operated its headquarters and a production plant in Memphis, Tennessee for over 50 years (the “Memphis Site”). While Hunter completed certain on-site remediation of PCB-contaminated soils, Hunter did not investigate the extent to which PCBs existed beneath the building itself nor determine whether off-site areas had been impacted. Hunter vacated the Memphis Site approximately twenty years ago, and the on-site buildings have now been demolished. The State of Tennessee Department of Environment and Conservation (“TDEC”) identified the Memphis Site as being potentially contaminated, raising the possibility that site operations could have resulted in soil and groundwater contamination involving volatile organic compounds and metals. The TDEC performed a preliminary assessment of the site and recommended to the United States Environmental Protection Agency (“EPA”) that the site be listed on the National Priorities List established under CERCLA. The TDEC further recommended that the EPA fund an investigation of potential soil gas contamination in receptors near the site. The TDEC has also indicated that it will proceed with this investigation if the EPA does not act. It is unknown whether the EPA will add the Memphis Site to the National Priorities List, whether a site investigation will reveal contamination and, if there is contamination, the extent of such contamination. However, given that certain PCB work was not completed in the past and the TDEC’s stated intent for the EPA to perform an investigation (and the statement by the TDEC that it will perform the investigation if the EPA will not), liability is probable in this matter. There are other potentially responsible parties for this site, including a former owner of Hunter; Hunter has notified such former owner of this matter, which may have liability for any required remediation. If the EPA decides to add this site to the National Priorities List, a Remedial Investigation/Feasibility Study (“RI/FS”) will be required. Hunter expects that EPA will ask it to perform this work. If Hunter does not reach an agreement with the EPA to perform this work, the EPA will implement the RI/FS on its own. Should the EPA implement the RI/FS or perform further studies and/or subsequently remediate the site without first reaching an agreement with one or more relevant parties, the EPA would likely seek from such parties, including Hunter, reimbursement for the costs incurred. General legal Griffon is subject to various laws and regulations relating to the protection of the environment and is a party to legal proceedings arising in the ordinary course of business. Management believes, based on facts presently known to it, that the resolution of the matters above and such other matters will not have a material adverse effect on Griffon’s consolidated financial position, results of operations or cash flows.

DESCRIPTION OF BUSINESS AND B_2

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Policies)	6 Months Ended
	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information, and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these financial statements do not include all the information and footnotes required by US GAAP for complete financial statements. As such, they should be read together with Griffon’s Annual Report on Form 10-K for the year ended September 30, 2021, which provides a more complete explanation of Griffon’s accounting policies, financial position, operating results, business, properties and other matters. In the opinion of management, these financial statements reflect all adjustments considered necessary for a fair statement of interim results. Griffon’s CPP operations are seasonal; for this and other reasons, the financial results of the Company for any interim period are not necessarily indicative of the results for the full year. The condensed consolidated balance sheet information at September 30, 2021 was derived from the audited financial statements included in Griffon’s Annual Report on Form 10-K for the year ended September 30, 2021. The condensed consolidated financial statements include the accounts of Griffon and all subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. These estimates may be adjusted due to changes in economic, industry or customer financial conditions, as well as changes in technology or demand. Significant estimates include expected loss allowances for doubtful accounts receivable and returns, net realizable value of inventories, restructuring reserves, valuation of goodwill and intangible assets, sales, assumptions associated with pension benefit obligations and income or expenses, useful lives associated with depreciation and amortization of intangible and fixed assets, warranty reserves, sales incentive accruals, assumption associated with stock based compensation valuation, income taxes and tax valuation reserves, environmental reserves, legal reserves, insurance reserves, the valuation of assets and liabilities of discontinued operations, assumptions associated with valuation of acquired assets and assumed liabilities of acquired companies and the accompanying disclosures. These estimates are based on management’s best knowledge of current events and actions Griffon may undertake in the future. Actual results may ultimately differ from these estimates. Certain amounts in the prior year have been reclassified to conform to current year presentation.
Fair Value Measurements	The carrying values of cash and equivalents, accounts receivable, accounts and notes payable, and revolving credit and variable interest rate debt approximate fair value due to either the short-term nature of such instruments or the fact that the interest rate of the revolving credit and variable rate debt is based upon current market rates. Applicable accounting guidance establishes a fair value hierarchy requiring the Company to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the hierarchy is based on the lowest level of input that is significant to the fair value measurement. The accounting guidance establishes three levels of inputs that may be used to measure fair value, as follows: • Level 1 inputs are measured and recorded at fair value based upon quoted prices in active markets for identical assets. • Level 2 inputs include inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices in active markets for similar assets and liabilities, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of assets or liabilities. • Level 3 inputs are unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.
Inventories	Inventories are stated at the lower of cost (first-in, first-out or average cost) or market.
Issued but not yet effective accounting pronouncements and New Accounting Standards Implemented	Issued but not yet effective accounting pronouncements In October 2021, the Financial Accounting Standards Board ("FASB") issued ASU No. 2021-08, Business Combinations (Topic 805); Accounting for Contract Assets and Contract Liabilities from Contracts with Customers . This new guidance affects all entities that enter into a business combination within the scope of ASC 805-10. Under this new guidance, the acquirer should determine what contract assets and/or liabilities it would have recorded under ASC 606 (Revenue Guidance) as of the acquisition date, as if the acquirer had entered into the original contract at the same date and on the same terms as the acquirer. Under current U.S. GAAP, contract assets and contract liabilities acquired in a business combination are recorded by the acquirer at fair value. This update is effective for the Company beginning in fiscal 2023. Early adoption is permitted. The Company is currently evaluating the effects that the adoption of this guidance will have on our consolidated financial statements and related disclosures. New Accounting Standards Implemented In December 2019, the FASB issued guidance on simplifying the accounting for income taxes by clarifying and amending existing guidance related to the recognition of franchise tax, the evaluation of a step up in the tax basis of goodwill, and the effects of enacted changes in tax laws or rates in the effective tax rate computation, among other clarifications. This guidance became effective for the Company beginning in fiscal 2022. We adopted the recognition of non-income taxes on the modified retrospective basis. Adoption of this standard did not have a material impact on our consolidated financial statements and the related disclosures. In August 2018, the FASB issued guidance to clarify disclosure requirements related to defined benefit pension and other post-retirement plans. The guidance is effective for fiscal years beginning after December 15, 2020, with early adoption permitted, and was effective for the Company in our fiscal year beginning in October 1, 2021. Adoption of this standard did not have a material impact on our consolidated financial statements and the related disclosures. The Company has implemented all new accounting pronouncements that are in effect and that may impact its financial statements, and does not believe that there are any other new accounting pronouncements that have been issued that might have a material impact on its financial position or results of operations.

ACQUISITIONS (Tables)

ACQUISITIONS (Tables)	6 Months Ended
	Mar. 31, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of Pro Forma Information	The following unaudited proforma summary from continuing operations presents consolidated information as if the Company acquired Hunter on October 1, 2020: Proforma For the Three Months Ended March 31, (unaudited) Proforma For the Six Months Ended March 31, (unaudited) 2022 2021 2022 2021 Revenue $ 791,038 $ 673,597 $ 1,461,877 $ 1,277,382 Income from continuing operations 55,151 24,419 75,125 50,514
Schedule of Assets Acquired and Liabilities Assumed	The calculation of the preliminary purchase price allocation is as follows: Accounts receivable (1) $ 64,602 Inventories (2) 110,299 Other current assets 9,513 Property, plant and equipment 15,007 Operating lease right-of-use assets 12,447 Goodwill 279,658 Intangible assets 606,000 Total assets acquired $ 1,097,526 Accounts payable and accrued liabilities $ 70,768 Current portion of operating lease liabilities 3,323 Deferred tax liability (3) 161,381 Long-term operating lease liabilities 9,123 Other long-term liabilities 1,467 Total liabilities assumed $ 246,062 Total net assets acquired $ 851,464 (1) Includes $67,201 of gross accounts receivable of which $2,599 was not expected to be collected. The fair value of accounts receivable approximated book value acquired. (2) Includes $113,287 of gross inventory of which $2,988 was reserved for obsolete items. (3) Deferred tax liability recorded on intangibles assets.
Schedule of Intangible Assets and Goodwill	The amounts assigned to goodwill and major intangible asset classifications for the Hunter acquisition are as follows: Average Life (Years) Goodwill $ 279,658 N/A Indefinite-lived intangibles 356,000 N/A Definite-lived intangibles 250,000 20 Total goodwill and intangible assets $ 885,658

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Mar. 31, 2022
Inventory Disclosure [Abstract]
Schedule of Inventory	The following table details the components of inventory: At March 31, 2022 At September 30, 2021 Raw materials and supplies $ 164,912 $ 133,684 Work in process 48,267 48,531 Finished goods 473,832 290,579 Total $ 687,011 $ 472,794

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	6 Months Ended
	Mar. 31, 2022
Property, Plant and Equipment [Abstract]
Summary of Property, Plant and Equipment	The following table details the components of property, plant and equipment, net: At March 31, 2022 At September 30, 2021 Land, building and building improvements $ 163,567 $ 164,486 Machinery and equipment 546,663 520,110 Leasehold improvements 42,045 39,913 752,275 724,509 Accumulated depreciation and amortization (448,106) (431,887) Total $ 304,169 $ 292,622

CREDIT LOSSES (Tables)

CREDIT LOSSES (Tables)	6 Months Ended
	Mar. 31, 2022
Credit Loss [Abstract]
Schedule of Accounts Receivable, Allowance for Credit Losses	The following table provides a roll-forward of the allowance for credit losses that is deducted from the amortized cost basis of accounts receivable to present the net amount expected to be collected: Six months ended March 31, 2022 2021 Beginning Balance, October 1 $ 8,787 $ 8,178 Accounts receivable, net acquired 2,599 — Provision for expected credit losses 1,889 1,234 Amounts written off charged against the allowance (10) (161) Other, primarily foreign currency translation 235 23 Ending Balance, March 31 $ 13,500 $ 9,274

GOODWILL AND OTHER INTANGIBLES

GOODWILL AND OTHER INTANGIBLES (Tables)	6 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Changes in Carrying Value of Goodwill	The following table provides changes in the carrying value of goodwill by segment during the six months ended March 31, 2022: At September 30, 2021 Hunter Acquisition Foreign At March 31, 2022 Consumer and Professional Products $ 234,895 $ 279,658 $ 1,717 $ 516,270 Home and Building Products 191,253 — — 191,253 Total $ 426,148 $ 279,658 $ 1,717 $ 707,523
Summary of Gross Carrying Value and Accumulated Amortization of Intangible Assets	The following table provides the gross carrying value and accumulated amortization for each major class of intangible assets: At March 31, 2022 At September 30, 2021 Gross Carrying Amount Accumulated Average Gross Carrying Amount Accumulated Customer relationships & other $ 438,693 $ 82,866 23 $ 187,732 $ 75,794 Technology and patents 13,613 2,702 13 13,429 2,439 Total amortizable intangible assets 452,306 85,568 201,161 78,233 Trademarks 582,992 — 227,097 — Total intangible assets $ 1,035,298 $ 85,568 $ 428,258 $ 78,233

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	6 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Summary of Long-Term Debt	At March 31, 2022 At September 30, 2021 Outstanding Balance Original Issuer Premium/(Discount) Capitalized Fees & Expenses Balance Sheet Coupon Interest Rate Outstanding Balance Original Issuer Premium/(Discount) Capitalized Fees & Expenses Balance Sheet Coupon Interest Rate Senior notes due 2028 (a) $ 1,000,000 $ 290 (12,257) $ 988,033 5.75 % $ 1,000,000 $ 315 $ (13,293) $ 987,022 5.75 % Term Loan B 2029 (b) 800,000 (1,970) (15,235) 782,795 Variable — — — — — n/a Revolver due 2025 (b) 153,146 — (1,473) 151,673 Variable 13,483 — (1,718) 11,765 Variable Finance lease - real estate (c) 13,757 — — 13,757 Variable 14,594 — (4) 14,590 Variable Non US lines of credit (d) 11,713 — (9) 11,704 Variable 3,012 — (17) 2,995 Variable Non US term loans (d) 15,948 — (52) 15,896 Variable 25,684 — (91) 25,593 Variable Other long term debt (e) 2,991 — (14) 2,977 Variable 3,733 — (15) 3,718 Variable Totals 1,997,555 (1,680) (29,040) 1,966,835 1,060,506 315 (15,138) 1,045,683 less: Current portion (25,110) — — (25,110) (12,486) — — (12,486) Long-term debt $ 1,972,445 $ (1,680) $ (29,040) $ 1,941,725 $ 1,048,020 $ 315 $ (15,138) $ 1,033,197
Summary of Interest Expense Incurred	Three Months Ended March 31, 2022 Three Months Ended March 31, 2021 Effective Interest Rate Cash Interest Amort. Debt (Premium)/Discount Amort. Debt Issuance Costs & Other Fees Total Interest Expense Effective Interest Rate Cash Interest Amort. Debt Amort. Total Interest Expense Senior notes due 2028 (a) 6.0 % $ 14,375 $ (12) $ 518 $ 14,881 6.0 % $ 14,375 $ (12) $ 529 $ 14,892 Term Loan B due 2029 (b) 3.4 % 4,767 30 232 5,029 n/a — — — — Revolver due 2025 (b) Variable 990 — 123 1,113 Variable 287 — 122 409 Finance lease - real estate (c) 5.6 % 192 — — 192 5.9 % 224 — 7 231 Non US lines of credit (d) Variable 7 — 3 10 Variable 4 — 4 8 Non US term loans (d) Variable 185 — 18 203 Variable 163 — 18 181 Other long term debt (e) Variable 61 — — 61 Variable 115 — 1 116 Capitalized interest (81) — — (81) (6) — — (6) Totals $ 20,496 $ 18 $ 894 $ 21,408 $ 15,162 $ (12) $ 681 $ 15,831

SHAREHOLDERS' EQUITY (Tables)

SHAREHOLDERS' EQUITY (Tables)	6 Months Ended
	Mar. 31, 2022
Stockholders' Equity Note [Abstract]
Compensation Expense Relating to Stock-based Incentive Plans	The following table summarizes the Company’s compensation expense relating to all stock-based incentive plans: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Restricted stock $ 4,314 $ 4,286 $ 8,204 $ 7,714 ESOP 778 1,007 1,755 1,787 Total stock based compensation $ 5,092 $ 5,293 $ 9,959 $ 9,501

EARNINGS PER SHARE (EPS) (Table

EARNINGS PER SHARE (EPS) (Tables)	6 Months Ended
	Mar. 31, 2022
Earnings Per Share [Abstract]
Summary of Reconciliation of Share Amounts Used in Earnings Per Share	The following table is a reconciliation of the share amounts (in thousands) used in computing earnings per share: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Common shares outstanding 57,032 56,684 57,032 56,684 Unallocated ESOP shares (1,769) (1,961) (1,769) (1,961) Non-vested restricted stock (3,533) (3,822) (3,533) (3,822) Impact of weighted average shares (62) (63) (307) (184) Weighted average shares outstanding - basic 51,668 50,838 51,423 50,717 Incremental shares from stock based compensation 1,762 2,426 2,179 2,494 Weighted average shares outstanding - diluted 53,430 53,264 53,602 53,211

BUSINESS SEGMENTS (Tables)

BUSINESS SEGMENTS (Tables)	6 Months Ended
	Mar. 31, 2022
Segment Reporting [Abstract]
Summary of Reportable Segments from Continuing Operations	For the Three Months Ended March 31, For the Six Months Ended March 31, REVENUE 2022 2021 2022 2021 Consumer and Professional Products $ 411,012 $ 331,871 $ 694,185 $ 622,913 Home and Building Products 368,605 242,811 677,181 493,292 Total revenue $ 779,617 $ 574,682 $ 1,371,366 $ 1,116,205 For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Segment adjusted EBITDA: Consumer and Professional Products $ 47,844 $ 37,423 $ 64,058 $ 70,136 Home and Building Products 104,474 40,060 160,771 88,429 Segment adjusted EBITDA 152,318 77,483 224,829 158,565 Unallocated amounts, excluding depreciation * (12,750) (12,104) (25,707) (24,733) Adjusted EBITDA 139,568 65,379 199,122 133,832 Net interest expense (21,376) (15,527) (37,024) (31,173) Depreciation and amortization (16,252) (13,149) (29,333) (25,739) Restructuring charges (4,766) (7,502) (6,482) (10,581) Acquisition costs (6,708) — (9,303) — Proxy expenses (4,661) — (6,952) — Fair value step-up of acquired inventory sold (2,701) — (2,701) — Income before taxes from continuing operations $ 83,104 $ 29,201 $ 107,327 $ 66,339 * Unallocated amounts typically include general corporate expenses not attributable to a reportable segment. For the Three Months Ended March 31, For the Six Months Ended March 31, DEPRECIATION and AMORTIZATION 2022 2021 2022 2021 Segment: Consumer and Professional Products $ 11,791 $ 8,620 $ 20,397 $ 16,819 Home and Building Products 4,324 4,379 8,662 8,720 Total segment depreciation and amortization 16,115 12,999 29,059 25,539 Corporate 137 150 274 200 Total consolidated depreciation and amortization $ 16,252 $ 13,149 $ 29,333 $ 25,739 CAPITAL EXPENDITURES Segment: Consumer and Professional Products $ 9,054 $ 6,813 $ 16,184 $ 13,720 Home and Building Products 2,403 1,998 5,752 4,113 Total segment 11,457 8,811 21,936 17,833 Corporate — 2 94 2 Total consolidated capital expenditures $ 11,457 $ 8,813 $ 22,030 $ 17,835 ASSETS At March 31, 2022 At September 30, 2021 Segment assets: Consumer and Professional Products $ 2,665,362 $ 1,377,618 Home and Building Products 714,647 666,422 Total segment assets 3,380,009 2,044,040 Corporate 138,462 283,202 Total continuing assets 3,518,471 2,327,242 Discontinued operations - held for sale 264,861 273,414 Other discontinued operations 3,691 4,029 Consolidated total $ 3,787,023 $ 2,604,685
Summary of Disaggregation of Revenue by End Market and Segment	The following table presents revenue disaggregated by end market and segment: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Residential repair and remodel $ 50,478 $ 50,560 $ 89,237 $ 96,160 Retail 216,836 153,746 347,071 292,994 Residential new construction 12,019 14,540 22,346 28,055 Industrial 21,068 9,958 32,374 19,489 International excluding North America 110,611 103,067 203,157 186,215 Total Consumer and Professional Products 411,012 331,871 694,185 622,913 Residential repair and remodel 172,377 120,827 317,462 246,942 Commercial construction 157,376 94,751 288,165 190,690 Residential new construction 38,852 27,233 71,554 55,660 Total Home and Building Products 368,605 242,811 677,181 493,292 Total Consolidated Revenue $ 779,617 $ 574,682 $ 1,371,366 $ 1,116,205 The following table presents revenue disaggregated by geography based on the location of the Company's customer: For the Three Months Ended March 31, 2022 2021 CPP HBP Total CPP HBP Total United States $ 264,747 $ 352,809 $ 617,556 $ 205,368 $ 230,955 $ 436,323 Europe 46,783 7 46,790 38,965 41 39,006 Canada 31,029 13,877 44,906 21,778 9,797 31,575 Australia 62,189 — 62,189 63,691 — 63,691 All other countries 6,264 1,912 8,176 2,069 2,018 4,087 Consolidated revenue $ 411,012 $ 368,605 $ 779,617 $ 331,871 $ 242,811 $ 574,682 For the Six Months Ended March 31, 2022 2022 2021 CPP HBP Total CPP HBP Total United States $ 429,646 $ 647,385 $ 1,077,031 $ 388,810 $ 467,486 $ 856,296 Europe 65,113 44 65,157 52,121 41 52,162 Canada 53,657 25,891 79,548 43,893 21,285 65,178 Australia 136,537 — 136,537 133,231 — 133,231 All other countries 9,232 3,861 13,093 4,858 4,480 9,338 Consolidated revenue $ 694,185 $ 677,181 $ 1,371,366 $ 622,913 $ 493,292 $ 1,116,205

EMPLOYEE BENEFIT PLANS (Tables)

EMPLOYEE BENEFIT PLANS (Tables)	6 Months Ended
	Mar. 31, 2022
Retirement Benefits [Abstract]
Summary of Defined Benefit Plans Included in Other Income	Defined benefit pension expense (income) included in Other Income (Expense), net was as follows: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Interest cost $ 911 $ 745 $ 1,707 $ 1,489 Expected return on plan assets (2,835) (2,545) (5,424) (5,089) Amortization: Recognized actuarial loss 845 1,573 1,690 3,146 Net periodic expense (income) $ (1,079) $ (227) $ (2,027) $ (454)

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	6 Months Ended
	Mar. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures	The following amounts related to Telephonics have been segregated from Griffon's continuing operations and are reported as a discontinued operation: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Revenue $ 56,273 $ 60,150 $ 110,266 $ 127,918 Cost of goods and services 45,188 51,411 86,149 113,512 Gross profit 11,085 8,739 24,117 14,406 Selling, general and administrative expenses 10,289 9,359 20,309 19,301 Income (loss) from discontinued operations 796 (620) 3,808 (4,895) Other income (expense) Interest income, net 2 1 2 1 Gain on sale of business — (949) — 5,291 Other, net (104) 227 (102) 293 Total other income (expense) (102) (721) (100) 5,585 Income from discontinued operations before taxes $ 694 $ (1,341) $ 3,708 $ 690 Provision (benefit) for income taxes (6,424) (334) (5,803) (2,373) Income from discontinued operations $ 7,118 $ (1,007) $ 9,511 $ 3,063 The following amounts related to Telephonics have been segregated from Griffon's continuing operations and are reported as assets and liabilities of discontinued operations held for sale in the consolidated balance sheets: At March 31, At September 30, 2022 2021 CURRENT ASSETS Accounts receivable, net $ 48,652 $ 42,020 Contract assets, net of progress payments 52,497 72,983 Inventories 87,265 83,970 Prepaid and other current assets 4,993 4,409 PROPERTY, PLANT AND EQUIPMENT, net 47,313 45,371 OPERATING LEASE RIGHT-OF-USE ASSETS 1,167 1,167 GOODWILL 17,734 17,734 INTANGIBLE ASSETS, net 131 131 OTHER ASSETS 5,109 5,629 Total Assets Held for Sale $ 264,861 $ 273,414 CURRENT LIABILITIES Accounts payable 58,681 60,486 Accrued liabilities 10,510 15,153 Current portion of operating lease liabilities 223 287 LONG-TERM OPERATING LEASE LIABILITIES 766 867 OTHER LIABILITIES 3,038 3,955 Total Liabilities Held for Sale $ 73,218 $ 80,748 The following amounts summarize the total assets and liabilities related to the Installation Services and other discontinued activities which have been segregated from Griffon’s continuing operations, and are reported as assets and liabilities of discontinued operations in the Condensed Consolidated Balance Sheets: At March 31, 2022 At September 30, 2021 Assets of discontinued operations: Prepaid and other current assets $ 497 $ 605 Other long-term assets 3,194 3,424 Total assets of discontinued operations $ 3,691 $ 4,029 Liabilities of discontinued operations: Accrued liabilities, current $ 3,312 $ 3,280 Other long-term liabilities 4,406 3,794 Total liabilities of discontinued operations $ 7,718 $ 7,074

RESTRUCTURING CHARGES (Tables)

RESTRUCTURING CHARGES (Tables)	6 Months Ended
	Mar. 31, 2022
Restructuring and Related Activities [Abstract]
Summary of the Restructuring and Other Related Charges	A summary of the restructuring and other related charges included in Cost of goods and services and SG&A expenses in the Company's Condensed Consolidated Statements of Operations were as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Cost of goods and services $ 2,455 $ 3,337 $ 2,777 $ 3,878 Selling, general and administrative expenses 2,311 4,165 3,705 6,703 Total restructuring charges $ 4,766 $ 7,502 $ 6,482 $ 10,581 For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Personnel related costs $ 1,878 $ 722 $ 2,138 $ 1,084 Facilities, exit costs and other 1,122 4,283 2,289 6,807 Non-cash facility and other 1,766 2,497 2,055 2,690 Total $ 4,766 $ 7,502 $ 6,482 $ 10,581
Summary of Accrued Liability for the Restructuring and Related Charges	The following table summarizes the accrued liabilities of the Company's restructuring actions: Cash Charges Non-Cash Personnel related costs Facilities & Facility and Other Costs Total Accrued liability at September 30, 2021 $ 418 $ 264 $ — $ 682 Q1 Restructuring charges 260 1,167 289 1,716 Q1 Cash payments (275) (1,167) — (1,442) Q1 Non-cash charges — — (289) (289) Accrued liability at December 31, 2021 $ 403 $ 264 $ — $ 667 Q2 Restructuring charges 1,878 1,122 1,766 4,766 Q2 Cash payments (1,883) (1,122) — (3,005) Q2 Non-cash charges — — (1,766) (1,766) Accrued liability at March 31, 2022 $ 398 $ 264 $ — $ 662

WARRANTY LIABILITY (Tables)

WARRANTY LIABILITY (Tables)	6 Months Ended
	Mar. 31, 2022
Product Warranties Disclosures [Abstract]
Summary of Changes in Warranty Liability, Included in Accrued Liabilities	Changes in Griffon’s warranty liability, included in Accrued liabilities, were as follows: Three Months Ended March 31, Six Months Ended March 31, 2022 2021 2022 2021 Balance, beginning of period $ 9,572 $ 6,232 $ 7,818 $ 6,268 Warranties issued and changes in estimated pre-existing warranties 5,788 4,933 9,249 8,509 Actual warranty costs incurred (3,755) (3,245) (5,462) (6,857) Other warranty liabilities assumed from acquisitions 6,353 — 6,353 — Balance, end of period $ 17,958 $ 7,920 $ 17,958 $ 7,920

OTHER COMPREHENSIVE INCOME (L_2

OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	6 Months Ended
	Mar. 31, 2022
OCI, Net of Tax [Abstract]
Summary of Comprehensive Income (Loss)	The amounts recognized in other comprehensive income (loss) were as follows: For the Three Months Ended March 31, 2022 2021 Pre-tax Tax Net of tax Pre-tax Tax Net of tax Foreign currency translation adjustments $ 6,049 $ — $ 6,049 $ 1,739 $ — $ 1,739 Pension and other defined benefit plans 177 (37) 140 1,585 (340) 1,245 Cash flow hedges (1,771) 531 (1,240) 2,559 (768) 1,791 Total other comprehensive income (loss) $ 4,455 $ 494 $ 4,949 $ 5,883 $ (1,108) $ 4,775 For the Six Months Ended March 31, 2022 2021 Pre-tax Tax Net of tax Pre-tax Tax Net of tax Foreign currency translation adjustments $ 3,730 $ — $ 3,730 $ 13,862 $ — $ 13,862 Pension and other defined benefit plans 1,023 (215) 808 3,735 (784) 2,951 Cash flow hedges (3,342) 1,002 (2,340) 1,576 (473) 1,103 Total other comprehensive income (loss) $ 1,411 $ 787 $ 2,198 $ 19,173 $ (1,257) $ 17,916 The components of Accumulated other comprehensive income (loss) are as follows: At March 31, 2022 At September 30, 2021 Foreign currency translation adjustments $ (15,520) $ (19,250) Pension and other defined benefit plans (27,994) (28,802) Change in Cash flow hedges (265) 2,075 $ (43,779) $ (45,977)
Reclassification from Accumulated Other Comprehensive Income (Loss)	Amounts reclassified from accumulated other comprehensive income (loss) to income were as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, Gain (Loss) 2022 2021 2022 2021 Pension amortization $ (845) $ (1,573) $ (1,690) $ (3,146) Cash flow hedges 1,384 (1,741) 2,917 (2,399) Total gain (loss) $ 539 $ (3,314) $ 1,227 $ (5,545) Tax benefit (expense) (113) 696 (257) 1,165 Total $ 426 $ (2,618) $ 970 $ (4,380)

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Mar. 31, 2022
Leases [Abstract]
Components of Operating Lease Cost, Cash Flow Information, and Average Lease Terms and Discount Rates	Components of operating lease costs are as follows: For the Three Months Ended March 31, For the Six Months Ended March 31, 2022 2021 2022 2021 Fixed $ 9,906 $ 9,686 $ 19,653 $ 19,177 Variable (a), (b) 1,684 1,919 3,536 3,813 Short-term (b) 1,486 985 2,835 2,055 Total $ 13,076 $ 12,590 $ 26,024 $ 25,045 (a) Primarily relates to common-area maintenance and property taxes. (b) Not recorded on the balance sheet. Supplemental cash flow information were as follows: For the Six Months Ended March 31, 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 22,510 $ 21,223 Financing cash flows from finance leases 1,401 1,865 Total $ 23,911 $ 23,088 Average lease terms and discount rates at March 31, 2022 were as follows: Weighted-average remaining lease term (years) Operating leases 7.6 Finance Leases 7.8 Weighted-average discount rate Operating Leases 4.36 % Finance Leases 5.49 %
Supplemental Condensed Consolidated Balance Sheet Information	Supplemental Condensed Consolidated Balance Sheet information related to leases were as follows: March 31, 2022 September 30, 2021 Operating Leases: Right of use assets: Operating right-of-use assets $ 149,587 $ 144,598 Lease Liabilities: Current portion of operating lease liabilities $ 32,210 $ 29,881 Long-term operating lease liabilities 122,488 119,315 Total operating lease liabilities $ 154,698 $ 149,196 Finance Leases: Property, plant and equipment, net (1) $ 15,113 $ 16,466 Lease Liabilities: Notes payable and current portion of long-term debt $ 2,329 $ 2,347 Long-term debt, net 13,019 14,120 Total financing lease liabilities $ 15,348 $ 16,467 (1) Finance lease assets are recorded net of accumulated depreciation of $4,488 and $6,136 as of March 31, 2022 and September 30, 2021, respectively.
Aggregate Future Maturities of Lease Payments for Operating Leases	The aggregate future maturities of lease payments for operating leases and finance leases as of March 31, 2022 are as follows (in thousands): Operating Leases Finance Leases 2022 (a) $ 20,230 $ 1,541 2023 34,959 2,893 2024 26,530 2,322 2025 23,775 2,128 2026 15,566 2,106 2027 11,677 2,074 Thereafter 54,552 5,703 Total lease payments $ 187,289 $ 18,767 Less: Imputed Interest (32,591) (3,419) Present value of lease liabilities $ 154,698 $ 15,348 (a) Excluding the six months ended March 31, 2022.
Aggregate Future Maturities of Lease Payments for Finance Leases	The aggregate future maturities of lease payments for operating leases and finance leases as of March 31, 2022 are as follows (in thousands): Operating Leases Finance Leases 2022 (a) $ 20,230 $ 1,541 2023 34,959 2,893 2024 26,530 2,322 2025 23,775 2,128 2026 15,566 2,106 2027 11,677 2,074 Thereafter 54,552 5,703 Total lease payments $ 187,289 $ 18,767 Less: Imputed Interest (32,591) (3,419) Present value of lease liabilities $ 154,698 $ 15,348 (a) Excluding the six months ended March 31, 2022.

DESCRIPTION OF BUSINESS AND B_3

DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Details) $ in Thousands	Jan. 24, 2022USD ($)	Jun. 30, 2022USD ($)	Mar. 31, 2022segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments | segment			2
Business Acquisition [Line Items]
Number of reportable segments | segment			2
Discontinued Operations, Held-for-sale | Telephonics Corporation | Forecast | Subsequent Event
Business Acquisition [Line Items]
Proceeds from divestiture of businesses		$ 330,000
Term Loan B 2029 | Term Loan
Business Acquisition [Line Items]
Face amount	$ 800,000
Debt instrument, term	7 years
Hunter Fan Company
Business Acquisition [Line Items]
Business combination, consideration transferred	$ 845,000

FAIR VALUE MEASUREMENTS (Detail

FAIR VALUE MEASUREMENTS (Details) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2022USD ($)	Mar. 31, 2022USD ($)$ / shares
Designated as Hedging Instrument | Australian Dollar Forward Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, notional amount	$ 46,500	$ 46,500
Contracts weighted average rate price (in dollars per share) | $ / shares		$ 1.35
Deferred gain (loss) from currency translation included in AOCI	773	$ 773
Deferred gain (loss) from currency translation included in AOCI, net of tax	541	541
Designated as Hedging Instrument | Australian Dollar Forward Contracts | Cost of goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) reclassified for settled contracts	730	$ 2,263
Designated as Hedging Instrument | Australian Dollar Forward Contracts | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		29 days
Designated as Hedging Instrument | Australian Dollar Forward Contracts | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		180 days
Designated as Hedging Instrument | Chinese Yuan Forward Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, notional amount	48,600	$ 48,600
Contracts weighted average rate price (in dollars per share) | $ / shares		$ 6.52
Deferred gain (loss) from currency translation included in AOCI	1,140	$ 1,140
Deferred gain (loss) from currency translation included in AOCI, net of tax	832	$ 832
Designated as Hedging Instrument | Chinese Yuan Forward Contracts | Cost of goods and services
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) reclassified for settled contracts	654
Designated as Hedging Instrument | Chinese Yuan Forward Contracts | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		7 days
Designated as Hedging Instrument | Chinese Yuan Forward Contracts | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		308 days
Not Designated as Hedging Instrument | Canadian Dollar Forward Contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset, notional amount	$ 6,950	$ 6,950
Derivative, average forward exchange rate	1.25	1.25
Not Designated as Hedging Instrument | Canadian Dollar Forward Contracts | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		1 day
Not Designated as Hedging Instrument | Canadian Dollar Forward Contracts | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency contracts duration		380 days
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Insurance contracts fair value	$ 4,053	$ 4,053
Marketable debt and equity securities, fair value	995	995
Marketable debt and equity securities, cost	1,000	1,000
Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument | Canadian Dollar Forward Contracts | Other income
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) on foreign currency derivative instruments not designated as hedging instruments	(136)	2
Realized gains (losses)	16	(2)
Senior notes due 2028 | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior note, fair value disclosure	945,000	945,000
Term Loan B 2029 | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior note, fair value disclosure	$ 792,000	$ 792,000

ACQUISITIONS - Narrative (Detai

ACQUISITIONS - Narrative (Details) $ in Thousands, $ in Thousands	Jan. 24, 2022USD ($)	Dec. 22, 2020USD ($)	Dec. 22, 2020AUD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2022USD ($)	Sep. 30, 2021USD ($)	Dec. 22, 2020AUD ($)
Business Acquisition [Line Items]
Goodwill				$ 707,523	$ 707,523	$ 426,148
Acquisition costs				$ 6,708	$ 9,303
Term Loan B 2029 | Term Loan
Business Acquisition [Line Items]
Face amount	$ 800,000
Debt instrument, term	7 years
Hunter Fan Company
Business Acquisition [Line Items]
Business combination, consideration transferred	$ 845,000
Goodwill	$ 279,658
Business acquisition, tax rate used to calculate pro forma amount	21.90%
Intangible assets	$ 606,000
Quatro Design Pty Ltd
Business Acquisition [Line Items]
Goodwill		$ 2,082					$ 2,755
Cash payment to acquire business		2,700	$ 3,500
Intangible assets		$ 784					$ 1,038

ACQUISITIONS - Schedule of Pro

ACQUISITIONS - Schedule of Pro Forma Information (Details) - Hunter Fan Company - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Business Acquisition [Line Items]
Revenue	$ 791,038	$ 673,597	$ 1,461,877	$ 1,277,382
Income from continuing operations	$ 55,151	$ 24,419	$ 75,125	$ 50,514

ACQUISITIONS - Schedule of Asse

ACQUISITIONS - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Jan. 24, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill	$ 707,523		$ 426,148
Hunter Fan Company
Business Acquisition [Line Items]
Accounts receivable		$ 64,602
Inventories		110,299
Other current assets		9,513
Property, plant and equipment		15,007
Operating lease right-of-use assets		12,447
Goodwill		279,658
Intangible assets		606,000
Total assets acquired		1,097,526
Accounts payable and accrued liabilities		70,768
Current portion of operating lease liabilities		3,323
Deferred tax liability		161,381
Long-term operating lease liabilities		9,123
Other long-term liabilities		1,467
Total liabilities assumed		246,062
Total net assets acquired		851,464
Gross accounts receivable		67,201
Allowance for accounts receivable		2,599
Gross inventory		113,287
Inventory reserves		$ 2,988

ACQUISITIONS - Summary of Goodw

ACQUISITIONS - Summary of Goodwill and Intangible Asset Classifications (Details) - USD ($) $ in Thousands	Jan. 24, 2022	Mar. 31, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill		$ 707,523	$ 426,148
Hunter Fan Company
Business Acquisition [Line Items]
Goodwill	$ 279,658
Indefinite-lived intangibles	356,000
Definite-lived intangibles	250,000
Total goodwill and intangible assets	$ 885,658
Definite-lived intangibles, average life	20 years

INVENTORIES - Summary of Invent

INVENTORIES - Summary of Inventories Stated at Lower Cost (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 164,912	$ 133,684
Work in process	48,267	48,531
Finished goods	473,832	290,579
Total	$ 687,011	$ 472,794

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Summary of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 752,275	$ 724,509
Accumulated depreciation and amortization	(448,106)	(431,887)
Total	304,169	292,622
Land, building and building improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	163,567	164,486
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	546,663	520,110
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 42,045	$ 39,913

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 11,782	$ 10,742	$ 22,476	$ 20,980
Selling, general and administrative expenses
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 4,256	$ 3,613	$ 7,656	$ 6,875

CREDIT LOSSES (Details)

CREDIT LOSSES (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance, October 1	$ 8,787	$ 8,178
Accounts receivable, net acquired	2,599	0
Provision for expected credit losses	1,889	1,234
Amounts written off charged against the allowance	(10)	(161)
Other, primarily foreign currency translation	235	23
Ending Balance, March 31	$ 13,500	$ 9,274

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLES - Summary of Changes in Carrying Value of Goodwill (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2022USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 426,148
Hunter Acquisition	279,658
Foreign currency translations adjustments	1,717
Goodwill, ending balance	707,523
Consumer and Professional Products
Goodwill [Roll Forward]
Goodwill, beginning balance	234,895
Hunter Acquisition	279,658
Foreign currency translations adjustments	1,717
Goodwill, ending balance	516,270
Home and Building Products
Goodwill [Roll Forward]
Goodwill, beginning balance	191,253
Hunter Acquisition	0
Foreign currency translations adjustments	0
Goodwill, ending balance	$ 191,253

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLES - Summary of Gross Carrying Value and Accumulated Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2022	Sep. 30, 2021
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 452,306	$ 201,161
Accumulated Amortization	85,568	78,233
Trademarks	582,992	227,097
Total intangible assets	1,035,298	428,258
Customer relationships & other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	438,693	187,732
Accumulated Amortization	$ 82,866	75,794
Average Life (Years)	23 years
Technology and patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 13,613	13,429
Accumulated Amortization	$ 2,702	$ 2,439
Average Life (Years)	13 years

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLES - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Carry amount of intangible assets related to foreign currency translation	$ 563,000
Amortization expense	4,470,000	$ 2,407,000	$ 6,857,000	$ 4,759,000
Estimated amortization expense, remainder of fiscal year	13,600,000		13,600,000
Estimated amortization expense, year one	22,100,000		22,100,000
Estimated amortization expense, year two	22,100,000		22,100,000
Estimated amortization expense, year three	22,100,000		22,100,000
Estimated amortization expense, year four	22,100,000		22,100,000
Estimated amortization expense, year five	22,100,000		22,100,000
Estimated amortization expense, thereafter	$ 242,638,000		242,638,000
Goodwill impairment			0
Indefinite-lived intangible asset (excluding goodwill) impairment			$ 0

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 24,533	$ 11,082	$ 31,851	$ 22,790
Income before taxes from continuing operations	83,104	29,201	107,327	66,339
Restructuring charges	4,766	7,502	6,482	10,581
Restructuring charges, net of tax	3,496	5,605	4,826	7,906
Effective income tax rate reconciliation, acquisition cost	6,708		9,303
Effective income tax rate reconciliation, acquisition cost, net of tax	6,146		8,149
Effective income tax rate reconciliation, proxy contest cost	4,661		6,952
Effective income tax rate reconciliation, proxy contest cost, net of tax	3,591		5,359
Effective income tax rate reconciliation, acquired inventory sold	2,701		2,701
Effective income tax rate reconciliation, acquired inventory sold, net of tax	2,007		2,007
Other tax expense (benefit) that affect comparability	$ (693)	$ 1,417	$ (1,574)	$ 369
Effective tax rate	28.30%	31.50%	29.00%	32.60%

LONG-TERM DEBT - Summary of Lon

LONG-TERM DEBT - Summary of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021	Jun. 22, 2020
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	$ 1,997,555	$ 1,060,506
less: Current portion, Outstanding Balance	(25,110)	(12,486)
Long-term debt, Outstanding Balance, Non-current	1,972,445	1,048,020
Original Issuer Premium/(Discount)	(1,680)	315
Capitalized Fees & Expenses	(29,040)	(15,138)
Long-term debt, Balance Sheet	1,966,835	1,045,683
less: Current portion, Balance Sheet	(25,110)	(12,486)
Long-term debt, Balance Sheet, Non-current	1,941,725	1,033,197
Senior notes due 2028
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	1,000,000	1,000,000
Original Issuer Premium/(Discount)	290	315
Capitalized Fees & Expenses	(12,257)	(13,293)
Long-term debt, Balance Sheet	$ 988,033	$ 987,022
Coupon Interest Rate	5.75%	5.75%	5.75%
Term Loan B 2029
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	$ 800,000	$ 0
Original Issuer Premium/(Discount)	(1,970)	0
Capitalized Fees & Expenses	(15,235)	0
Long-term debt, Balance Sheet	782,795	0
Revolver due 2025
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	153,146	13,483
Original Issuer Premium/(Discount)	0	0
Capitalized Fees & Expenses	(1,473)	(1,718)
Long-term debt, Balance Sheet	151,673	11,765
Finance lease - real estate
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	13,757	14,594
Original Issuer Premium/(Discount)	0	0
Capitalized Fees & Expenses	0	(4)
Long-term debt, Balance Sheet	13,757	14,590
Non US lines of credit
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	11,713	3,012
Original Issuer Premium/(Discount)	0	0
Capitalized Fees & Expenses	(9)	(17)
Long-term debt, Balance Sheet	11,704	2,995
Non US term loans
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	15,948	25,684
Original Issuer Premium/(Discount)	0	0
Capitalized Fees & Expenses	(52)	(91)
Long-term debt, Balance Sheet	15,896	25,593
Other long term debt
Debt Instrument [Line Items]
Long-term debt, Outstanding Balance	2,991	3,733
Original Issuer Premium/(Discount)	0	0
Capitalized Fees & Expenses	(14)	(15)
Long-term debt, Balance Sheet	$ 2,977	$ 3,718

LONG-TERM DEBT - Summary of Int

LONG-TERM DEBT - Summary of Interest Expense Incurred (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Debt Instrument [Line Items]
Cash Interest, Capitalized Interest	$ (81)	$ (6)	$ (154)	$ (13)
Cash Interest	20,496	15,162	35,523	30,172
Amort. Debt (Premium)/Discount	18	(12)	6	(24)
Amort. Debt Issuance Costs & Other Fees	894	681	1,560	1,373
Total Interest Expense	$ 21,408	$ 15,831	$ 37,089	$ 31,521
Senior notes due 2028
Debt Instrument [Line Items]
Effective Interest Rate	6.00%	6.00%	6.00%	6.00%
Cash Interest, Including Amounts Capitalized	$ 14,375	$ 14,375	$ 28,750	$ 28,750
Amort. Debt (Premium)/Discount	(12)	(12)	(24)	(24)
Amort. Debt Issuance Costs & Other Fees	518	529	1,036	1,071
Total Interest Expense	$ 14,881	14,892	$ 29,762	29,797
Term Loan B 2029
Debt Instrument [Line Items]
Effective Interest Rate	3.40%		3.40%
Cash Interest, Including Amounts Capitalized	$ 4,767	0	$ 4,767	0
Amort. Debt (Premium)/Discount	30	0	30	0
Amort. Debt Issuance Costs & Other Fees	232	0	232	0
Total Interest Expense	5,029	0	5,029	0
Revolver due 2025
Debt Instrument [Line Items]
Cash Interest, Including Amounts Capitalized	990	287	1,251	416
Amort. Debt (Premium)/Discount	0	0	0	0
Amort. Debt Issuance Costs & Other Fees	123	122	245	245
Total Interest Expense	$ 1,113	$ 409	$ 1,496	$ 661
Finance lease - real estate
Debt Instrument [Line Items]
Effective Interest Rate	5.60%	5.90%	5.50%	5.60%
Cash Interest, Including Amounts Capitalized	$ 192	$ 224	$ 390	$ 456
Amort. Debt (Premium)/Discount	0	0	0	0
Amort. Debt Issuance Costs & Other Fees	0	7	4	13
Total Interest Expense	192	231	394	469
Non US lines of credit
Debt Instrument [Line Items]
Cash Interest, Including Amounts Capitalized	7	4	10	7
Amort. Debt (Premium)/Discount	0	0	0	0
Amort. Debt Issuance Costs & Other Fees	3	4	7	8
Total Interest Expense	10	8	17	15
Non US term loans
Debt Instrument [Line Items]
Cash Interest, Including Amounts Capitalized	185	163	351	334
Amort. Debt (Premium)/Discount	0	0	0	0
Amort. Debt Issuance Costs & Other Fees	18	18	35	35
Total Interest Expense	203	181	386	369
Other long term debt
Debt Instrument [Line Items]
Cash Interest, Including Amounts Capitalized	61	115	158	222
Amort. Debt (Premium)/Discount	0	0	0	0
Amort. Debt Issuance Costs & Other Fees	0	1	1	1
Total Interest Expense	$ 61	$ 116	$ 159	$ 223

LONG-TERM DEBT - Narrative (Det

LONG-TERM DEBT - Narrative (Details) $ in Thousands

Jan. 24, 2022USD ($)step_down

Dec. 31, 2021

Jul. 31, 2018GBP (£)

Jul. 31, 2016AUD ($)

Nov. 30, 2012

Mar. 31, 2022AUD ($)

Mar. 31, 2022USD ($)option

Dec. 31, 2020USD ($)

Mar. 31, 2022CAD ($)

Mar. 31, 2022AUD ($)

Mar. 31, 2022GBP (£)

Dec. 09, 2021USD ($)

Sep. 30, 2021USD ($)

Dec. 30, 2020USD ($)

Aug. 03, 2020USD ($)

Jun. 22, 2020

Debt Instrument [Line Items]

Debt outstanding

$ 1,997,555,000

$ 1,060,506,000

Basis spread on variable rate

1.30%

Long-term debt

$ 1,966,835,000

$ 1,045,683,000

Ocala, Florida

Debt Instrument [Line Items]

Lessee, finance Lease, discount rate

5.60%

5.60%

5.60%

5.60%

Number of option to extend | option

2

Lease renewal term

5 years

5 years

5 years

5 years

Troy, Ohio

Debt Instrument [Line Items]

Lessee, finance Lease, discount rate

5.00%

5.00%

5.00%

5.00%

Lessee, finance lease buyout amount

$ 1

Term Loan | Northcote Holdings Pty. Ltd

Debt Instrument [Line Items]

Repayments of debt

$ 9,625,000

Long-term debt

$ 18,375,000

Term Loan | Ames UK

Debt Instrument [Line Items]

Face amount | £

£ 14,000,000

Debt instrument, periodic payment, principal | £

438,000

Periodic payment terms, balloon payment to be paid | £

£ 7,088,000

Revolver due 2025

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 400,000

Maximum borrowing capacity, accordion feature

$ 100,000,000

Maximum percentage of equity interest of subsidiaries borrowings guaranteed

65.00%

Outstanding standby letters of credit

$ 13,815,000

Remaining borrowing capacity

$ 233,039,000

Revolver due 2025 | Secured Overnight Financing Rate

Debt Instrument [Line Items]

Basis spread on variable rate

2.00%

Revolver due 2025 | Base Rate

Debt Instrument [Line Items]

Basis spread on variable rate

1.00%

Revolver due 2025 | SONIA

Debt Instrument [Line Items]

Basis spread on variable rate

2.00%

Mortgages | SONIA | Ames UK

Debt Instrument [Line Items]

Basis spread on variable rate

1.92%

Revolving Credit Facility | Northcote Holdings Pty. Ltd

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 20,000,000

Line of credit facility, cancelled

$ 20,000,000

Revolving Credit Facility | Ames UK

Debt Instrument [Line Items]

Face amount | £

£ 5,000,000

Long-term debt

$ 3,713,000

£ 2,827,000

Long-term line of credit, revolver outstanding balance

0

Revolving Credit Facility | SONIA | Ames UK

Debt Instrument [Line Items]

Basis spread on variable rate

4.00%

3.25%

Term and Mortgage Loans | Ames UK

Debt Instrument [Line Items]

Long-term debt

$ 15,948,000

12,145,000

Trade Loan Facility | Ames UK

Debt Instrument [Line Items]

Face amount | £

8,500,000

Debt instrument, term

135 days

Short-term debt | £

£ 8,000,000

Trade Loan Facility | Federal Target Range | Ames UK | Minimum

Debt Instrument [Line Items]

Basis spread on variable rate

2.50%

Trade Loan Facility | Federal Target Range | Ames UK | Maximum

Debt Instrument [Line Items]

Basis spread on variable rate

2.88%

Letter of Credit Subfacility | Revolver due 2025

Debt Instrument [Line Items]

Maximum borrowing capacity

100,000,000

Multicurrency Subfacility | Revolver due 2025

Debt Instrument [Line Items]

Maximum borrowing capacity

$ 200,000,000

Receivables Purchase Facility | Northcote Holdings Pty. Ltd

Debt Instrument [Line Items]

Debt instrument, interest rate, effective percentage

1.31%

1.31%

1.31%

1.31%

Maximum borrowing capacity

$ 15,000,000

Remaining borrowing capacity

$ 11,273,000

$ 15,000,000

Long-term line of credit

$ 0

Receivables Purchase Facility | Bank Bill Sap Rate | Northcote Holdings Pty. Ltd

Debt Instrument [Line Items]

Basis spread on variable rate

1.25%

Senior notes due 2028

Debt Instrument [Line Items]

Face amount

$ 1,000,000,000

Debt instrument, interest rate, stated percentage

5.75%

5.75%

5.75%

5.75%

5.75%

5.75%

Debt outstanding

$ 1,000,000,000

$ 1,000,000,000

Capitalized debt issuance costs

$ 16,448,000

Debt issuance fees and expenses, net

12,257,000

Long-term debt

988,033,000

987,022,000

Senior notes due 2028 | Fair Value, Inputs, Level 1

Debt Instrument [Line Items]

Senior note, fair value disclosure

945,000,000

Senior notes due 2022

Debt Instrument [Line Items]

Repayments of debt

$ 1,000,000,000

Debt instrument, interest rate, stated percentage

5.25%

Senior Notes

Debt Instrument [Line Items]

Debt outstanding

1,000,000,000

Non US lines of credit

Debt Instrument [Line Items]

Debt outstanding

11,713,000

3,012,000

Maximum borrowing capacity

12,018,000

$ 15,000

Long-term debt

$ 11,704,000

2,995,000

Non US lines of credit | Bankers Acceptance Rate

Debt Instrument [Line Items]

Interest rate at period end

2.38%

2.38%

2.38%

2.38%

Non US lines of credit | London Interbank Offered Rate (LIBOR)

Debt Instrument [Line Items]

Interest rate at period end

1.75%

1.75%

1.75%

1.75%

Mortgages | Ames UK

Debt Instrument [Line Items]

Face amount | £

£ 4,000,000

Interest rate at period end

2.61%

2.61%

2.61%

2.61%

Debt instrument, periodic payment, principal | £

105,000

Periodic payment terms, balloon payment to be paid | £

£ 2,349,000

Term Loan | Term Loan B 2029

Debt Instrument [Line Items]

Face amount

800,000,000

Capitalized debt issuance costs

$ 15,466,000

Debt issuance fees and expenses, net

$ 15,235,000

Secured overnight financing rate floor

0.00005%

Debt instrument, interest rate, effective percentage

0.00033%

Debt instrument, issuance price (in percentage)

99.75%

Debt instrument, number of interest rate step-downs | step_down

2

Debt instrument, quarterly principal payment, percentage

0.25%

Debt instrument, term

7 years

Term Loan | Term Loan B 2029 | Secured Overnight Financing Rate

Debt Instrument [Line Items]

Basis spread on variable rate

0.00028%

Term Loan B 2029

Debt Instrument [Line Items]

Debt outstanding

800,000,000

0

Long-term debt

782,795,000

$ 0

Term Loan B 2029 | Fair Value, Inputs, Level 1

Debt Instrument [Line Items]

Senior note, fair value disclosure

$ 792,000,000

SHAREHOLDERS' EQUITY - Narrativ

SHAREHOLDERS' EQUITY - Narrative (Details)

Apr. 27, 2022$ / shares

Feb. 17, 2022shares

Jan. 30, 2020shares

Mar. 31, 2022USD ($)executive$ / sharesshares

Dec. 31, 2021USD ($)executive$ / sharesshares

Sep. 30, 2021$ / shares

Jun. 30, 2021$ / shares

Mar. 31, 2021$ / shares

Dec. 31, 2020$ / shares

Mar. 31, 2022USD ($)$ / sharesshares

Mar. 31, 2021$ / shares

Sep. 30, 2021$ / shares

Aug. 01, 2018USD ($)

Jan. 31, 2018shares

Aug. 03, 2016USD ($)

Class of Stock [Line Items]

Common stock, dividends, per share, cash paid (in dollars per share) | $ / shares

$ 0.09

$ 0.08

$ 0.18

$ 0.16

$ 0.32

Number of additional shares authorized for award (in shares)

1,200,000

Reissuance of shares in treasury for award under share-based payment arrangement (in shares)

469,855

Stock repurchase program, authorized amount | $

$ 50,000,000

$ 50,000,000

Stock repurchase program, remaining authorized repurchase amount | $

$ 57,955,000

$ 57,955,000

Restricted Stock and Restricted Stock Units

Class of Stock [Line Items]

Equity instruments other than options, grants in period (in shares)

236,973

Restricted Stock and Restricted Stock Units, Subject to Performance Conditions

Class of Stock [Line Items]

Equity instruments other than options, grants in period (in shares)

218,162

Equity instruments other than options, granted in period, fair value | $

$ 6,285,000

Equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares

$ 28.81

Restricted Stock Award

Class of Stock [Line Items]

Equity instruments other than options, grants in period (in shares)

711,725

Shares paid for tax withholding for share based compensation (in shares)

421,860

Shares paid for tax withholding for share based compensation, value | $

$ 10,742,000

Shares paid for tax withholding for share based compensation, value per share (in dollars per share) | $ / shares

$ 25.46

Restricted Stock Award | Non-employees, directors

Class of Stock [Line Items]

Award vesting period

1 year

Equity instruments other than options, grants in period (in shares)

58,384

Equity instruments other than options, granted in period, fair value | $

$ 1,375,000

Equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares

$ 23.55

Restricted Stock Award | Executive Officer

Class of Stock [Line Items]

Award vesting period

3 years

3 years

Equity instruments other than options, grants in period (in shares)

199,195

18,811

Equity instruments other than options, granted in period, fair value | $

$ 1,494,000

$ 507,000

Equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares

$ 22.50

$ 26.97

Number of executive officers granted shares | executive

9

1

Restricted Stock Award | Minimum

Class of Stock [Line Items]

Award vesting period

3 years

Restricted Stock Award | Maximum

Class of Stock [Line Items]

Award vesting period

4 years

Restricted Stock Subject to Performance Conditions

Class of Stock [Line Items]

Award vesting period

34 months

Restricted Stock Subject to Performance Conditions | Executive Officer

Class of Stock [Line Items]

Equity instruments other than options, granted in period, fair value | $

$ 5,456,000

Equity instruments other than options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares

$ 24.03

Restricted Stock Subject to Performance Conditions | Senior Executives

Class of Stock [Line Items]

Award vesting period

34 months

Equity instruments other than options, grants in period (in shares)

454,146

Number of executive officers granted shares | executive

2

Award post-vesting holding period

2 years

Restricted Stock Subject to Performance Conditions | Minimum

Class of Stock [Line Items]

Number of shares to be vested if performance condition is attained

113,538

Restricted Stock Subject to Performance Conditions | Maximum

Class of Stock [Line Items]

Number of shares to be vested if performance condition is attained

454,146

Restricted Stock Units

Class of Stock [Line Items]

Shares paid for tax withholding for share based compensation (in shares)

5,480

Shares paid for tax withholding for share based compensation, value | $

$ 144,000

Shares paid for tax withholding for share based compensation, value per share (in dollars per share) | $ / shares

$ 26.31

Restricted Stock Units | Minimum

Class of Stock [Line Items]

Award vesting period

3 years

Restricted Stock Units | Maximum

Class of Stock [Line Items]

Award vesting period

4 years

Incentive Plan

Class of Stock [Line Items]

Number of shares authorized for award (in shares)

6,250,000

6,250,000

1,000,000

Number of additional shares authorized for award (in shares)

1,700,000

Share-based compensation arrangement by share-based payment award, expiration period

10 years

Maximum percentage of exercise price at grant date fair value

100.00%

Number of shares available for grant (in shares)

867,180

867,180

Incentive Plan | Incentive Stock Options

Class of Stock [Line Items]

Number of shares authorized for award (in shares)

600,000

600,000

Quarterly Dividend

Class of Stock [Line Items]

Common stock, dividends, per share, cash paid (in dollars per share) | $ / shares

$ 0.09

$ 0.09

$ 0.08

$ 0.08

$ 0.08

$ 0.08

Quarterly Dividend | Subsequent Event

Class of Stock [Line Items]

Dividends declared, amount per share (in dollars per share) | $ / shares

$ 0.09

SHAREHOLDERS' EQUITY - Compensa

SHAREHOLDERS' EQUITY - Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Stockholders' Equity Note [Abstract]
Restricted stock	$ 4,314	$ 4,286	$ 8,204	$ 7,714
ESOP	778	1,007	1,755	1,787
Total stock based compensation	$ 5,092	$ 5,293	$ 9,959	$ 9,501

EARNINGS PER SHARE (EPS) (Detai

EARNINGS PER SHARE (EPS) (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
Common shares outstanding (in shares)	57,032	56,684	57,032	56,684
Unallocated ESOP shares (in shares)	(1,769)	(1,961)	(1,769)	(1,961)
Non-vested restricted stock (in shares)	(3,533)	(3,822)	(3,533)	(3,822)
Impact of weighted average shares (in shares)	(62)	(63)	(307)	(184)
Weighted average shares outstanding - basic (in shares)	51,668	50,838	51,423	50,717
Incremental shares from stock based compensation (in shares)	1,762	2,426	2,179	2,494
Weighted average shares outstanding - diluted (in shares)	53,430	53,264	53,602	53,211

BUSINESS SEGMENTS - Narrative (

BUSINESS SEGMENTS - Narrative (Details)	6 Months Ended
	Mar. 31, 2022segment
Segment Reporting [Abstract]
Number of reportable segments	2

BUSINESS SEGMENTS - Summary of

BUSINESS SEGMENTS - Summary of Reportable Segments from Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Revenue	$ 779,617	$ 574,682	$ 1,371,366	$ 1,116,205
Consumer and Professional Products
Segment Reporting Information [Line Items]
Revenue	411,012	331,871	694,185	622,913
Home and Building Products
Segment Reporting Information [Line Items]
Revenue	$ 368,605	$ 242,811	$ 677,181	$ 493,292

BUSINESS SEGMENTS - Disaggregat

BUSINESS SEGMENTS - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 779,617	$ 574,682	$ 1,371,366	$ 1,116,205
United States
Disaggregation of Revenue [Line Items]
Revenue	617,556	436,323	1,077,031	856,296
Europe
Disaggregation of Revenue [Line Items]
Revenue	46,790	39,006	65,157	52,162
Canada
Disaggregation of Revenue [Line Items]
Revenue	44,906	31,575	79,548	65,178
Australia
Disaggregation of Revenue [Line Items]
Revenue	62,189	63,691	136,537	133,231
All other countries
Disaggregation of Revenue [Line Items]
Revenue	8,176	4,087	13,093	9,338
Consumer and Professional Products
Disaggregation of Revenue [Line Items]
Revenue	411,012	331,871	694,185	622,913
Consumer and Professional Products | United States
Disaggregation of Revenue [Line Items]
Revenue	264,747	205,368	429,646	388,810
Consumer and Professional Products | Europe
Disaggregation of Revenue [Line Items]
Revenue	46,783	38,965	65,113	52,121
Consumer and Professional Products | Canada
Disaggregation of Revenue [Line Items]
Revenue	31,029	21,778	53,657	43,893
Consumer and Professional Products | Australia
Disaggregation of Revenue [Line Items]
Revenue	62,189	63,691	136,537	133,231
Consumer and Professional Products | All other countries
Disaggregation of Revenue [Line Items]
Revenue	6,264	2,069	9,232	4,858
Consumer and Professional Products | Residential repair and remodel
Disaggregation of Revenue [Line Items]
Revenue	50,478	50,560	89,237	96,160
Consumer and Professional Products | Retail
Disaggregation of Revenue [Line Items]
Revenue	216,836	153,746	347,071	292,994
Consumer and Professional Products | Residential new construction
Disaggregation of Revenue [Line Items]
Revenue	12,019	14,540	22,346	28,055
Consumer and Professional Products | Industrial
Disaggregation of Revenue [Line Items]
Revenue	21,068	9,958	32,374	19,489
Consumer and Professional Products | International excluding North America
Disaggregation of Revenue [Line Items]
Revenue	110,611	103,067	203,157	186,215
Home and Building Products
Disaggregation of Revenue [Line Items]
Revenue	368,605	242,811	677,181	493,292
Home and Building Products | United States
Disaggregation of Revenue [Line Items]
Revenue	352,809	230,955	647,385	467,486
Home and Building Products | Europe
Disaggregation of Revenue [Line Items]
Revenue	7	41	44	41
Home and Building Products | Canada
Disaggregation of Revenue [Line Items]
Revenue	13,877	9,797	25,891	21,285
Home and Building Products | Australia
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Home and Building Products | All other countries
Disaggregation of Revenue [Line Items]
Revenue	1,912	2,018	3,861	4,480
Home and Building Products | Residential repair and remodel
Disaggregation of Revenue [Line Items]
Revenue	172,377	120,827	317,462	246,942
Home and Building Products | Residential new construction
Disaggregation of Revenue [Line Items]
Revenue	38,852	27,233	71,554	55,660
Home and Building Products | Commercial construction
Disaggregation of Revenue [Line Items]
Revenue	$ 157,376	$ 94,751	$ 288,165	$ 190,690

BUSINESS SEGMENTS - Segment EBI

BUSINESS SEGMENTS - Segment EBITDA (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Adjusted EBITDA	$ 139,568	$ 65,379	$ 199,122	$ 133,832
Segment adjusted EBITDA	152,318	77,483	224,829	158,565
Depreciation and amortization	(16,252)	(13,149)	(29,333)	(25,739)
Fair value step-up of acquired inventory sold			(2,701)	0
Income before taxes from continuing operations	83,104	29,201	107,327	66,339
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	(16,115)	(12,999)	(29,059)	(25,539)
Operating Segments | Consumer and Professional Products
Segment Reporting Information [Line Items]
Adjusted EBITDA	47,844	37,423	64,058	70,136
Depreciation and amortization	(11,791)	(8,620)	(20,397)	(16,819)
Operating Segments | Home and Building Products
Segment Reporting Information [Line Items]
Adjusted EBITDA	104,474	40,060	160,771	88,429
Depreciation and amortization	(4,324)	(4,379)	(8,662)	(8,720)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated amounts, excluding depreciation	(12,750)	(12,104)	(25,707)	(24,733)
Net interest expense	(21,376)	(15,527)	(37,024)	(31,173)
Depreciation and amortization	(16,252)	(13,149)	(29,333)	(25,739)
Restructuring charges	(4,766)	(7,502)	(6,482)	(10,581)
Acquisition costs	(6,708)	0	(9,303)	0
Proxy expenses	(4,661)	0	(6,952)	0
Fair value step-up of acquired inventory sold	$ (2,701)	$ 0	$ (2,701)	$ 0

BUSINESS SEGMENTS - Depreciatio

BUSINESS SEGMENTS - Depreciation, Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	$ 16,252	$ 13,149	$ 29,333	$ 25,739
CAPITAL EXPENDITURES	11,457	8,813	22,030	17,835
Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	16,115	12,999	29,059	25,539
CAPITAL EXPENDITURES	11,457	8,811	21,936	17,833
Corporate
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	137	150	274	200
CAPITAL EXPENDITURES	0	2	94	2
Consumer and Professional Products | Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	11,791	8,620	20,397	16,819
CAPITAL EXPENDITURES	9,054	6,813	16,184	13,720
Home and Building Products | Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	4,324	4,379	8,662	8,720
CAPITAL EXPENDITURES	$ 2,403	$ 1,998	$ 5,752	$ 4,113

BUSINESS SEGMENTS - Summary o_2

BUSINESS SEGMENTS - Summary of Segment Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Continuing assets	$ 3,518,471	$ 2,327,242
Discontinued operations	3,691	4,029
Total Assets	3,787,023	2,604,685
Discontinued Operations, Not Held-for-sale
Segment Reporting Information [Line Items]
Discontinued operations	3,691	4,029
Discontinued Operations, Held-for-sale
Segment Reporting Information [Line Items]
Discontinued operations	264,861	273,414
Operating Segments
Segment Reporting Information [Line Items]
Continuing assets	3,380,009	2,044,040
Operating Segments | Consumer and Professional Products
Segment Reporting Information [Line Items]
Continuing assets	2,665,362	1,377,618
Operating Segments | Home and Building Products
Segment Reporting Information [Line Items]
Continuing assets	714,647	666,422
Corporate
Segment Reporting Information [Line Items]
Continuing assets	$ 138,462	$ 283,202

EMPLOYEE BENEFIT PLANS (Details

EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Retirement Benefits [Abstract]
Interest cost	$ 911	$ 745	$ 1,707	$ 1,489
Expected return on plan assets	(2,835)	(2,545)	(5,424)	(5,089)
Amortization:
Recognized actuarial loss	845	1,573	1,690	3,146
Net periodic expense (income)	$ (1,079)	$ (227)	$ (2,027)	$ (454)

DISCONTINUED OPERATIONS - Incom

DISCONTINUED OPERATIONS - Income Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before taxes	$ 694	$ (1,341)	$ 3,708	$ 690
Provision (benefit) for income taxes	(6,424)	(334)	(5,803)	(2,373)
Defense Electronics | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	56,273	60,150	110,266	127,918
Cost of goods and services	45,188	51,411	86,149	113,512
Gross profit	11,085	8,739	24,117	14,406
Selling, general and administrative expenses	10,289	9,359	20,309	19,301
Income from discontinued operations	796	(620)	3,808	(4,895)
Interest income, net	2	1	2	1
Gain on sale of business	0	(949)	0	5,291
Other, net	(104)	227	(102)	293
Total other income (expense)	(102)	(721)	(100)	5,585
Income from discontinued operations before taxes	694	(1,341)	3,708	690
Provision (benefit) for income taxes	(6,424)	(334)	(5,803)	(2,373)
Income from discontinued operations	$ 7,118	$ (1,007)	$ 9,511	$ 3,063

DISCONTINUED OPERATIONS - Narra

DISCONTINUED OPERATIONS - Narrative (Details) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended	24 Months Ended
	Jun. 30, 2022USD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Mar. 31, 2022USD ($)	Mar. 31, 2021USD ($)	Sep. 30, 2021USD ($)	Sep. 30, 2021USD ($)position
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring charges		$ 4,766	$ 7,502		$ 6,482	$ 10,581
Liabilities of discontinued operations held-for-sale		7,718			7,718		$ 7,074	$ 7,074
Discontinued Operations | Installation Services and Other Discontinued Activities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from disposed business		0	0		0	0
Discontinued Operations | Defense Electronics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consulting and stay bonuses cost		2,422			4,214
Pro forma depreciation and amortization from Defense Electronics		2,400			5,100
Disposal group, including discontinued operations, deferred tax benefit					4,954
Discontinued Operations | Defense Electronics | Voluntary Employee Retirement Plan and Reduction In Force
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring charges				$ 2,200
Reduction of headcount | position								90
Discontinued Operations | Defense Electronics | Exit of Older Weather Radar Product Lines
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business exit costs							5,601
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations | Systems Engineering Group, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from disposed business				$ 6,713
Discontinued Operations, Held-for-sale | Defense Electronics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from disposed business		56,273	$ 60,150		110,266	$ 127,918
Liabilities of discontinued operations held-for-sale		$ 73,218			$ 73,218		$ 80,748	$ 80,748
Discontinued Operations, Held-for-sale | Telephonics Corporation | Forecast | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestiture of businesses	$ 330,000

DISCONTINUED OPERATIONS - Balan

DISCONTINUED OPERATIONS - Balance Sheets Information of Discontinued Operations (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
CURRENT ASSETS
Prepaid and other current assets	$ 497	$ 605
ASSETS OF DISCONTINUED OPERATIONS	3,194	3,424
Total assets of discontinued operations	3,691	4,029
CURRENT LIABILITIES
Total liabilities of discontinued operations	7,718	7,074
Discontinued Operations, Held-for-sale
CURRENT ASSETS
Total assets of discontinued operations	264,861	273,414
Defense Electronics | Discontinued Operations, Held-for-sale
CURRENT ASSETS
Accounts receivable, net	48,652	42,020
Contract assets, net of progress payments	52,497	72,983
Inventories	87,265	83,970
Prepaid and other current assets	4,993	4,409
PROPERTY, PLANT AND EQUIPMENT, net	47,313	45,371
OPERATING LEASE RIGHT-OF-USE ASSETS	1,167	1,167
GOODWILL	17,734	17,734
INTANGIBLE ASSETS, net	131	131
ASSETS OF DISCONTINUED OPERATIONS	5,109	5,629
Total assets of discontinued operations	264,861	273,414
CURRENT LIABILITIES
Accounts payable	58,681	60,486
Accrued liabilities	10,510	15,153
Current portion of operating lease liabilities	223	287
LONG-TERM OPERATING LEASE LIABILITIES	766	867
OTHER LIABILITIES	3,038	3,955
Total liabilities of discontinued operations	$ 73,218	$ 80,748

DISCONTINUED OPERATIONS - Bal_2

DISCONTINUED OPERATIONS - Balance Sheets Information of Installation Services and Other Discontinued Activities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Assets of discontinued operations:
Prepaid and other current assets	$ 497	$ 605
Other long-term assets	3,194	3,424
Total assets of discontinued operations	3,691	4,029
Liabilities of discontinued operations:
Accrued liabilities, current	3,312	3,280
Other long-term liabilities	4,406	3,794
Total liabilities of discontinued operations	$ 7,718	$ 7,074

RESTRUCTURING CHARGES - Narrati

RESTRUCTURING CHARGES - Narrative (Details) $ in Thousands	Nov. 12, 2020USD ($)	Mar. 31, 2022USD ($)	Dec. 31, 2021USD ($)	Mar. 31, 2021USD ($)	Mar. 31, 2022USD ($)position	Mar. 31, 2021USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 4,766		$ 7,502	$ 6,482	$ 10,581
Payments for restructuring		3,005	$ 1,442
Non-cash charges		1,766	289
Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring charges				7,502		10,581
Impairment charge, manufacturing assets					1,766
Inventory write down					$ 289	2,690
Reduction of headcount | position					20
Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings					$ 25,000
Payments for restructuring					4,427	7,891
Non-cash charges					2,055	2,690
Minimum | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings	$ 30,000
Maximum | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Annual cash savings	35,000
One-time charges | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	65,000	50,000			50,000
Capital investments | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 65,000	15,000			15,000
Personnel related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,878		722	2,138	1,084
Payments for restructuring		1,883	275
Non-cash charges		0	0
Personnel related costs | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Payments for restructuring					2,138	1,084
Facilities & Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,122		$ 4,283	2,289	6,807
Payments for restructuring		1,122	1,167
Non-cash charges		$ 0	$ 0
Facilities & Exit Costs | Next-generation Business Platform | Consumer and Professional Products
Restructuring Cost and Reserve [Line Items]
Payments for restructuring					$ 2,289	$ 6,807

RESTRUCTURING CHARGES - Summary

RESTRUCTURING CHARGES - Summary of the Restructuring and Other Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 4,766	$ 7,502	$ 6,482	$ 10,581
Personnel related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,878	722	2,138	1,084
Facilities & Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,122	4,283	2,289	6,807
Facility and Other Costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,766	2,497	2,055	2,690
Cost of goods and services
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2,455	3,337	2,777	3,878
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2,311	$ 4,165	$ 3,705	$ 6,703

RESTRUCTURING CHARGES - Summa_2

RESTRUCTURING CHARGES - Summary of Accrued Liability for the Restructuring and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2022
Restructuring Reserve [Roll Forward]
Accrued liability beginning balance	$ 667	$ 682	$ 682
Restructuring charges	4,766	1,716
Cash payment	(3,005)	(1,442)
Non-cash charges	(1,766)	(289)
Accrued liability ending balance	662	667	662
Personnel related costs
Restructuring Reserve [Roll Forward]
Accrued liability beginning balance	403	418	418
Restructuring charges	1,878	260
Cash payment	(1,883)	(275)
Non-cash charges	0	0
Accrued liability ending balance	398	403	398
Facilities & Exit Costs
Restructuring Reserve [Roll Forward]
Accrued liability beginning balance	264	264	264
Restructuring charges	1,122	1,167
Cash payment	(1,122)	(1,167)
Non-cash charges	0	0
Accrued liability ending balance	264	264	264
Facility and Other Costs
Restructuring Reserve [Roll Forward]
Accrued liability beginning balance	0	0	0
Restructuring charges	1,766	289
Cash payment	0	0
Non-cash charges	(1,766)	(289)
Accrued liability ending balance	$ 0	$ 0	$ 0

OTHER INCOME (EXPENSE) (Details

OTHER INCOME (EXPENSE) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Other Income and Expenses [Abstract]
Other income (expense)	$ 1,675	$ 1,081	$ 3,056	$ 1,438
Foreign currency transaction gain (loss), before tax	(168)	320	(562)	(379)
Net periodic benefit income	1,079	227	2,027	454
Investment income, net	(331)	55	(238)	386
Rental income	462	$ 462	924	$ 924
Royalty income	$ 616		$ 616

WARRANTY LIABILITY - Narrative

WARRANTY LIABILITY - Narrative (Details)	6 Months Ended
	Mar. 31, 2022
Home and Building Products | Minimum
Product Warranty Liability [Line Items]
Product warranty period	1 year
Home and Building Products | Maximum
Product Warranty Liability [Line Items]
Product warranty period	10 years
CPP
Product Warranty Liability [Line Items]
Product warranty period	90 days

WARRANTY LIABILITY - Changes in

WARRANTY LIABILITY - Changes in Warrant Liability (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance, beginning of period	$ 9,572	$ 6,232	$ 7,818	$ 6,268
Warranties issued and changes in estimated pre-existing warranties	5,788	4,933	9,249	8,509
Actual warranty costs incurred	(3,755)	(3,245)	(5,462)	(6,857)
Other warranty liabilities assumed from acquisitions	6,353	0	6,353	0
Balance, end of period	$ 17,958	$ 7,920	$ 17,958	$ 7,920

OTHER COMPREHENSIVE INCOME (L_3

OTHER COMPREHENSIVE INCOME (LOSS) - Summary of OCI (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), pre-tax	$ 4,455		$ 5,883		$ 1,411	$ 19,173
Total other comprehensive income (loss), tax	494		(1,108)		787	(1,257)
Total other comprehensive income (loss), net of taxes	4,949	$ (2,751)	4,775	$ 13,141	2,198	17,916
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), pre-tax	6,049		1,739		3,730	13,862
Total other comprehensive income (loss), tax	0		0		0	0
Total other comprehensive income (loss), net of taxes	6,049		1,739		3,730	13,862
Pension and other defined benefit plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), pre-tax	177		1,585		1,023	3,735
Total other comprehensive income (loss), tax	(37)		(340)		(215)	(784)
Total other comprehensive income (loss), net of taxes	140		1,245		808	2,951
Cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive income (loss), pre-tax	(1,771)		2,559		(3,342)	1,576
Total other comprehensive income (loss), tax	531		(768)		1,002	(473)
Total other comprehensive income (loss), net of taxes	$ (1,240)		$ 1,791		$ (2,340)	$ 1,103

OTHER COMPREHENSIVE INCOME (L_4

OTHER COMPREHENSIVE INCOME (LOSS) - AOCI (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	$ 883,214	$ 812,385	$ 807,158	$ 764,431	$ 740,047	$ 700,151
Foreign currency translation adjustments
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	(15,520)		(19,250)
Pension and other defined benefit plans
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	(27,994)		(28,802)
Cash flow hedges
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	(265)		2,075
Accumulated other comprehensive income (loss), attributable to parent
Class of Stock [Line Items]
Accumulated other comprehensive income (loss)	$ (43,779)	$ (48,728)	$ (45,977)	$ (54,176)	$ (58,951)	$ (72,092)

OTHER COMPREHENSIVE INCOME (L_5

OTHER COMPREHENSIVE INCOME (LOSS) - Amounts Reclassified from AOCI (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2022	Mar. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes from continuing operations	$ 83,104		$ 29,201		$ 107,327	$ 66,339
Tax benefit (expense)	(24,533)		(11,082)		(31,851)	(22,790)
Net income	65,689	$ 19,298	17,112	$ 29,500	84,987	46,612
Accumulated other comprehensive income (loss), attributable to parent | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes from continuing operations	539		(3,314)		1,227	(5,545)
Tax benefit (expense)	(113)		696		(257)	1,165
Net income	426		(2,618)		970	(4,380)
Pension and other defined benefit plans | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes from continuing operations	(845)		(1,573)		(1,690)	(3,146)
Cash flow hedges | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Income before taxes from continuing operations	$ 1,384		$ (1,741)		$ 2,917	$ (2,399)

LEASES - Schedule of Lease Cost

LEASES - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Lease Cost
Fixed	$ 9,906	$ 9,686	$ 19,653	$ 19,177
Variable	1,684	1,919	3,536	3,813
Short-term	1,486	985	2,835	2,055
Total	$ 13,076	$ 12,590	$ 26,024	$ 25,045

LEASES - Supplemental Cash Flow

LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 22,510	$ 21,223
Financing cash flows from finance leases	1,401	1,865
Total	$ 23,911	$ 23,088

LEASES - Summary of Supplementa

LEASES - Summary of Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Operating Leases:
Operating right-of-use assets	$ 149,587	$ 144,598
Lease Liabilities:
Current portion of operating lease liabilities	32,210	29,881
Long-term operating lease liabilities	122,488	119,315
Total operating lease liabilities	154,698	149,196
Finance Leases:
Property, plant and equipment, net	$ 15,113	$ 16,466
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	PROPERTY, PLANT AND EQUIPMENT, net	PROPERTY, PLANT AND EQUIPMENT, net
Lease Liabilities:
Lease liabilities, notes payable and current portion of long-term debt	$ 2,329	$ 2,347
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Notes payable and current portion of long-term debt	Notes payable and current portion of long-term debt
Lease liabilities, long-term debt, net	$ 13,019	$ 14,120
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term Debt, Excluding Current Maturities	Long-term Debt, Excluding Current Maturities
Total financing lease liabilities	$ 15,348	$ 16,467
Accumulated depreciation	$ 4,488	$ 6,136

LEASES - Narrative (Details)

LEASES - Narrative (Details)	6 Months Ended
	Mar. 31, 2022USD ($)option	Sep. 30, 2021USD ($)
Lessee, Lease, Description [Line Items]
Long-term debt	$ 1,966,835,000	$ 1,045,683,000
Finance Lease Obligation
Lessee, Lease, Description [Line Items]
Long-term debt	13,757,000	$ 14,590,000
Troy, Ohio
Lessee, Lease, Description [Line Items]
Lessee, finance lease buyout amount	$ 1
Ocala, Florida
Lessee, Lease, Description [Line Items]
Number of option to extend | option	2
Lease renewal term	5 years

LEASES - Summary of Future Matu

LEASES - Summary of Future Maturities of Lease Payments for Operating Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Operating Leases
2022	$ 20,230
2023	34,959
2024	26,530
2025	23,775
2026	15,566
2027	11,677
Thereafter	54,552
Total lease payments	187,289
Less: Imputed Interest	(32,591)
Present value of lease liabilities	154,698	$ 149,196
Finance Leases
2022	1,541
2023	2,893
2024	2,322
2025	2,128
2026	2,106
2027	2,074
Thereafter	5,703
Total lease payments	18,767
Less: Imputed Interest	(3,419)
Present value of lease liabilities	$ 15,348	$ 16,467

LEASES - Weighted Average Lease

LEASES - Weighted Average Lease Terms and Discount Rates (Details)	Mar. 31, 2022
Weighted-average remaining lease term (years)
Operating leases	7 years 7 months 6 days
Finance Leases	7 years 9 months 18 days
Weighted-average discount rate
Operating Leases	4.36%
Finance Leases	5.49%

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details)	6 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Site contingency, ownership period	3 years