Divestitures - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Aug. 31, 2023	Jan. 05, 2023
Gunderson
Impaired Long-Lived Assets Held and Used [Line Items]
Carrying value of long-lived assets		$ 44.0
Fair value of long-lived assets		$ 19.8
Impairment of long-lived assets	$ 24.2
Gain (loss) on sale	(14.4)
Severance	2.1
Southwest Steel
Impaired Long-Lived Assets Held and Used [Line Items]
Gain (loss) on sale	(9.7)
Rayvag
Impaired Long-Lived Assets Held and Used [Line Items]
Gain (loss) on sale	3.7
Manufacturing \| Gunderson
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment of long-lived assets	24.2
Gain (loss) on sale	(14.4)
Severance	2.1
Manufacturing \| Southwest Steel
Impaired Long-Lived Assets Held and Used [Line Items]
Gain (loss) on sale	(9.7)
Manufacturing \| Rayvag
Impaired Long-Lived Assets Held and Used [Line Items]
Gain (loss) on sale	$ 3.7

Fair value portion of assets classified as held for sale.

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Amount of assets held-for-sale that are not part of a disposal group.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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