Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 356,225	$ 323,756
Acquisitions		1,551	39,419
Divestiture	$ (7,900)	(3,394)	(7,888)
Assets Held for Sale		(1,693)	1,413
Currency Translation Adjustment		1,192	(475)
Goodwill, ending balance	356,225	353,881	356,225
Metal Coatings \| Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		157,048	116,691
Acquisitions		1,551	39,419
Divestiture		(1,132)	0
Assets Held for Sale		0	1,413
Currency Translation Adjustment		1,192	(475)
Goodwill, ending balance	157,048	158,659	157,048
Infrastructure Solutions \| Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance		199,177	207,065
Acquisitions		0	0
Divestiture		(2,262)	(7,888)
Assets Held for Sale		(1,693)	0
Currency Translation Adjustment		0	0
Goodwill, ending balance	$ 199,177	$ 195,222	$ 199,177

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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