Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 29, 2020	Feb. 28, 2022	Feb. 28, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 353,881	$ 356,225
Acquisitions		32,389	1,551
Divestiture	$ (7,900)	0	(3,394)
Other		(477)	(1,693)
Currency Translation Adjustment		(180)	1,192
Goodwill, ending balance	356,225	385,613	353,881
Metal Coatings | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		158,659	157,048
Acquisitions		32,389	1,551
Divestiture		0	(1,132)
Other		(477)	0
Currency Translation Adjustment		(180)	1,192
Goodwill, ending balance	157,048	190,391	158,659
Infrastructure Solutions | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		195,222	199,177
Acquisitions		0	0
Divestiture		0	(2,262)
Other		0	(1,693)
Currency Translation Adjustment		0	0
Goodwill, ending balance	$ 199,177	$ 195,222	$ 195,222