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Summary of Significant Accounting Policies - Rollforward of Allowance For Credit Losses (Details) - Allowance for Credit Losses - USD ($) $ in Thousands | 12 Months Ended
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Feb. 28, 2023 | Feb. 28, 2022 | Feb. 28, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at beginning of year | $ 5,395 | $ 5,378 | $ 5,551
Adjustment based on aged receivables analysis | (58) | 100 | 207
Charge-offs, net of recoveries | 83 | (85) | (572)
Other | 327 | 0 | 116
Effect of exchange rate changes | 5 | 2 | 76
Balance at end of year(1) | 5,752 | $ 5,395 | $ 5,378
AZZ Infrastructure Solutions |  |  |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Balance at end of year(1) | $ 5,400 |  |

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