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Discontinued Operations - Discontinued Operations in Consolidated Statements of Operations (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 | Nov. 30, 2022 | Nov. 30, 2021 | Nov. 30, 2022 | Nov. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Loss on disposal |  | $ 45,010 | $ 0 | $ 159,910 | $ 0
Net income (loss) from discontinued operations |  | $ (38,981) | $ 7,978 | $ (112,947) | $ 23,412
Earnings per common share from discontinued operations: |  |  |  |  |
Basic earnings (loss) per share (in dollars per share) |  | $ (1.57) | $ 0.32 | $ (4.55) | $ 0.94
Diluted earnings (loss) per share (in dollars per share) |  | $ (1.56) | $ 0.32 | $ (4.52) | $ 0.93
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 |  | $ 42,300 | $ 96,654 | $ 256,224 | $ 282,278
Cost of sales |  | 35,020 | 77,263 | 202,707 | 222,432
Gross margin |  | 7,280 | 19,391 | 53,517 | 59,846
Selling, general and administrative |  | 4,074 | 10,589 | 26,186 | 35,192
Loss on disposal | $ (114,900) | 45,010 | 0 | 159,910 | 0
Operating income (loss) from discontinued operations |  | (41,804) | 8,802 | (132,579) | 24,654
Interest expense |  | 2 | 2 | 8 | 63
Other (income) expense, net |  | 2,002 | 1,504 | 6,270 | 1,468
Income (loss) from discontinued operations before income tax |  | (43,808) | 7,296 | (138,857) | 23,123
Income tax (benefit) expense |  | (4,827) | (682) | (25,910) | (289)
Net income (loss) from discontinued operations |  | $ (38,981) | $ 7,978 | $ (112,947) | $ 23,412

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