Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2022 USD ($)	Aug. 31, 2021 USD ($)	Aug. 31, 2022 USD ($) segment	Aug. 31, 2021 USD ($)	Feb. 28, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment			3
Operations and assets by segment
Revenues	$ 406,710	$ 131,434	$ 613,844	$ 260,650
Operating income:	64,141	19,962	92,050	41,388
Total assets:	2,584,747		2,584,747		$ 1,133,027
Property, plant and equipment, net	496,125		496,125		193,358
United States
Operations and assets by segment
Revenues	393,835	122,871	588,195	243,449
Property, plant and equipment, net	472,001		472,001		167,634
International
Operations and assets by segment
Revenues	12,875	8,563	25,649	17,201
Canada
Operations and assets by segment
Property, plant and equipment, net	24,124		24,124		25,724
Corporate
Operations and assets by segment
Operating income:	(17,068)	(12,085)	(41,077)	(22,573)
Total assets:	60,805		60,805		46,266
Corporate | Precoat Metals Business Division | AZZ Infrastructure Solutions
Operations and assets by segment
Operating income:	2,700		15,200
Metal Coatings | Operating Segments
Operations and assets by segment
Revenues	165,849	131,434	329,293	260,650
Operating income:	44,996	32,047	90,266	63,961
Total assets:	594,116		594,116		578,885
Precoat Metals | Operating Segments
Operations and assets by segment
Revenues	240,861	0	284,551	0
Operating income:	36,213	$ 0	42,861	$ 0
Total assets:	$ 1,528,250		$ 1,528,250		$ 0