Commitments and Contingencies (Details) $ in Thousands				9 Months Ended	12 Months Ended
	Dec. 03, 2024 USD ($)	May 31, 2024 USD ($)	Oct. 27, 2023 USD ($)	Nov. 30, 2024 USD ($) a	Feb. 29, 2024 USD ($)
Loss Contingencies [Line Items]
Amount awarded to other party			$ 5,500
Loss contingency, receivable, current				$ 5,200
Loss contingency accrual				5,250
Environment liability				19,600
Environmental liability, current				$ 2,200
Area of facility (in acres) | a				25
Percent of output under take-or-pay contract				0.75
Unrecorded purchase obligation				$ 124,000
Purchase obligations				46,800	$ 60,800
Capital commitments				16,400
Gainesville Association vs. ARC
Loss Contingencies [Line Items]
Legal matter expense				500
Loss contingency accrual				3,000
Estimated legal expenses				1,100
Gainesville Association vs. ARC | Subsequent Event
Loss Contingencies [Line Items]
Amount awarded to other party	$ 6,000
Gainesville Association vs. ARC | Azz Inc. | Subsequent Event
Loss Contingencies [Line Items]
Amount awarded to other party	$ 1,900
Capital Commitments
Loss Contingencies [Line Items]
Long-term purchase commitment, amount				$ 9,700
Zinc Contract
Loss Contingencies [Line Items]
Long-term purchase commitment, amount		$ 4,700
Natural Gas Contract
Loss Contingencies [Line Items]
Long-term purchase commitment, amount		$ 8,600