Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 703,863	$ 705,468
Acquisitions	9,585	0
Other	(123)	0
Currency Translation Adjustment	1,428	(1,605)
Goodwill, ending balance	714,753	703,863
Metal Coatings | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance	176,070	177,675
Acquisitions	9,585	0
Other	(123)	0
Currency Translation Adjustment	1,428	(1,605)
Goodwill, ending balance	186,960	176,070
Precoat Metals | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance	527,793	527,793
Acquisitions	0	0
Other	0
Currency Translation Adjustment	0	0
Goodwill, ending balance	$ 527,793	$ 527,793