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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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DISCONTINUED OPERATIONS - Narrative (Details) $ in Thousands, $ in Thousands				3 Months Ended	12 Months Ended
	Jul. 31, 2026 USD ($)	Jul. 31, 2026 AUD ($)	Jun. 09, 2026 USD ($)	Mar. 31, 2026 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jul. 31, 2026 AUD ($)
Disposal Group, Including Discontinued Operations [Line Items]
Restructuring charges					$ 41,309	$ 92,468
Consumer And Professional Products
Disposal Group, Including Discontinued Operations [Line Items]
Restructuring charges					41,309	92,468
Payments for restructuring					17,546	33,536
Non-cash charges				$ 19,867	23,763	58,932
Impairment of inventory					23,763	37,100
Impairment of machinery and equipment						21,832
Consumer And Professional Products \| Personnel related costs
Disposal Group, Including Discontinued Operations [Line Items]
Payments for restructuring				$ 6,046	5,856	16,772
Consumer And Professional Products \| Facilities, exit costs and other
Disposal Group, Including Discontinued Operations [Line Items]
Payments for restructuring					$ 11,690	$ 16,764
Discontinued Operations, Disposed of by Sale \| AMES North America
Disposal Group, Including Discontinued Operations [Line Items]
Proceeds from organization of joint venture			$ 100,000
Notes issued			161,100
Equity method investments			$ 118,600
Discontinued Operations, Disposed of by Sale \| AMES North America \| Veritage Brands
Disposal Group, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage			43.00%
Discontinued Operations, Disposed of by Sale \| AMES North America \| Veritage Brands \| ONCAP Management Partners, L.P.
Disposal Group, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage			57.00%
Discontinued Operations, Held-for-sale \| AMES Australasia business
Disposal Group, Including Discontinued Operations [Line Items]
Proceeds from organization of joint venture	$ 180,910	$ 258,000
Notes issued	48,593	$ 69,300
Equity method investments	$ 20,896						$ 29,800
Discontinued Operations, Held-for-sale \| AMES Australasia business \| Griffon Joint Venture
Disposal Group, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage	49.00%						49.00%
Discontinued Operations, Held-for-sale \| AMES Australasia business \| Griffon Joint Venture \| Investment Group, including AMES Australasia Management
Disposal Group, Including Discontinued Operations [Line Items]
Equity method investment, ownership percentage	51.00%						51.00%