Discontinued Operations - Discontinued Operations in Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
May 31, 2023	May 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) from discontinued operations	$ 0	$ 8,724
Earnings per common share from discontinued operations:
Earnings (loss) per common share from discontinued operations (in dollars per share)	$ 0	$ 0.35
Earnings (loss) per common share from discontinued operations (in dollars per share)	$ 0	$ 0.34
Discontinued Operations, Disposed of by Sale \| AZZ Infrastructure Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales		$ 107,264
Cost of sales		82,861
Gross margin		24,403
Selling, general and administrative		12,402
Operating income (loss) from discontinued operations		12,001
Interest expense		1
Other (income) expense, net		825
Income (loss) from discontinued operations before income tax		11,175
Income tax (benefit) expense		2,451
Net income (loss) from discontinued operations		$ 8,724
Earnings per common share from discontinued operations:
Earnings (loss) per common share from discontinued operations (in dollars per share)		$ 0.35
Earnings (loss) per common share from discontinued operations (in dollars per share)		$ 0.34

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