Discontinued Operations - Discontinued Operations in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Feb. 28, 2023	Feb. 28, 2022
Current assets of discontinued operations:
Assets held for sale	$ 0	$ 201,664
Long-term assets of discontinued operations:
Total non-current assets of discontinued operations	0	306,212
Current liabilities of discontinued operations:
Current liabilities of discontinued operations	0	88,283
Long-term liabilities of discontinued operations:
Total long-term liabilities of discontinued operations	$ 0	24,207
Discontinued Operations, Disposed of by Sale | AZZ Infrastructure Solutions
Current assets of discontinued operations:
Cash and cash equivalents		3,000
Accounts receivable		81,911
Raw materials		36,581
Work-in-process		6,445
Finished goods		77
Contract assets		71,762
Prepaid expenses and other		1,888
Assets held for sale		201,664
Long-term assets of discontinued operations:
Property, plant and equipment		37,490
Right-of-use asset		29,332
Goodwill		195,222
Intangibles and other assets, net		42,442
Deferred tax asset		1,726
Total non-current assets of discontinued operations		306,212
Total assets of discontinued operations		507,876
Current liabilities of discontinued operations:
Accounts payable		19,146
Income tax payable		(264)
Accrued salaries and wages		11,301
Other accrued liabilities		54,071
Lease liability, short-term		4,029
Current liabilities of discontinued operations		88,283
Long-term liabilities of discontinued operations:
Lease liability, long-term		24,207
Total long-term liabilities of discontinued operations		24,207
Total liabilities of discontinued operations		$ 112,490