Commitments and Contingencies (Details) $ in Thousands				3 Months Ended			12 Months Ended
	Dec. 03, 2024 USD ($)	May 31, 2024 USD ($)	Oct. 27, 2023 USD ($)	Feb. 28, 2025 USD ($)	Aug. 31, 2024 USD ($)	May 31, 2024 USD ($)	Feb. 28, 2025 USD ($) a	Feb. 29, 2024 USD ($)	Jan. 15, 2024 USD ($)	Nov. 30, 2023 USD ($)
Loss Contingencies [Line Items]
Amount awarded to other party			$ 5,500		$ 5,800
Loss contingency, receivable, current										$ 3,700
Legal matter expense				$ 500
Loss contingency accrual				5,500			$ 5,500	$ 5,250	$ 5,800
Estimated legal expenses				1,300			1,300
Environment liability				18,900			18,900
Environmental liability, current				$ 2,400			$ 2,400
Area of facility (in acres) | a							25
Percent of output under take-or-pay contract				0.75			0.75
Unrecorded purchase obligation				$ 121,800			$ 121,800
Purchase obligations						$ 52,800	60,800
Capital commitments				8,200			8,200
Standard and extended product warranty accrual				5,400			5,400
Gainesville Association vs. ARC
Loss Contingencies [Line Items]
Amount awarded to other party	$ 6,000
Gainesville Association vs. ARC | Azz Inc.
Loss Contingencies [Line Items]
Amount awarded to other party	$ 1,900
Legal matter expense							1,600
TECO Case
Loss Contingencies [Line Items]
Loss contingency, receivable, current				5,200			5,200
Legal matter expense				$ 6,500
Capital Commitments
Loss Contingencies [Line Items]
Long-term purchase commitment, amount							$ 7,500
Zinc Contract
Loss Contingencies [Line Items]
Long-term purchase commitment, amount		$ 98,700
Natural Gas Contract
Loss Contingencies [Line Items]
Long-term purchase commitment, amount		$ 6,700