Restructuring and Impairment Charges - Schedule of Restructuring Costs (Details) - USD ($) $ in Thousands	12 Months Ended
Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Restructuring Cost and Reserve [Line Items]
Write down of assets held for sale to estimated sales price		$ 6,752
Write down of assets expected to be abandoned		6,923
Loss on sale of subsidiaries	$ 552	3,080	$ 18,632
Write down of excess inventory	0	2,511	0
Costs associated with assets held for sale		733
Total charges	$ (1,797)	19,999	$ 18,632
Metal Coatings \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Write down of assets held for sale to estimated sales price		2,652
Write down of assets expected to be abandoned		6,923
Loss on sale of subsidiaries		1,221
Write down of excess inventory		0
Costs associated with assets held for sale		0
Total charges		10,796
Infrastructure Solutions \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Write down of assets held for sale to estimated sales price		4,100
Write down of assets expected to be abandoned		0
Loss on sale of subsidiaries		1,859
Write down of excess inventory		2,511
Costs associated with assets held for sale		733
Total charges		$ 9,203

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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