Commitments and Contingencies (Details) ft² in Thousands, $ in Thousands		3 Months Ended		12 Months Ended
	Oct. 27, 2023 USD ($)	Feb. 29, 2024 USD ($) ft²	Aug. 31, 2023 USD ($)	Feb. 29, 2024 USD ($) ft²	Jan. 15, 2024 USD ($)
Loss Contingencies [Line Items]
Loss contingency accrual		$ 5,500		$ 5,500	$ 5,800
Amount awarded to other party	$ 5,500	5,300	$ 5,800
Decrease in accounts receivable due to forgiveness				3,700
Loss contingency, receivable, current		5,200		5,200
Legal matter expense		$ 500
Litigation settlement, payment period (in days)		60 days
Appeal process duration (in years)	2 years
Environment liability		$ 21,800		21,800
Environmental liability, current		3,200		3,200
Standard and extended product warranty accrual		$ 5,000		$ 5,000
Number of square feet of aluminum coil coating | ft²		215		215
Capital commitments		$ 43,200		$ 43,200
Zinc
Loss Contingencies [Line Items]
Long-term purchase commitment, amount				47,400
Natural Gas
Loss Contingencies [Line Items]
Long-term purchase commitment, amount				$ 8,200