Discontinued Operations - Discontinued Operations in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Nov. 30, 2022	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:
Liabilities held for sale	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	0	3,000
Accounts receivable	0	81,911
Raw materials	0	36,581
Work-in-process	0	6,445
Finished goods	0	77
Contract assets	0	71,762
Prepaid expenses and other	0	1,888
Assets held for sale	0	201,664
Long-term assets of discontinued operations:
Property, plant and equipment	0	37,490
Right-of-use asset	0	29,332
Goodwill	0	195,222
Intangibles and other assets, net	0	42,442
Deferred tax asset	0	1,726
Total non-current assets of discontinued operations	0	306,212
Total assets of discontinued operations	0	507,876
Current liabilities of discontinued operations:
Accounts payable	0	19,146
Income tax payable	0	(264)
Accrued salaries and wages	0	11,301
Other accrued liabilities	0	11,219
Customer deposits	0	387
Contract liabilities	0	42,465
Lease liability, short-term	0	4,029
Liabilities held for sale	0	88,283
Long-term liabilities of discontinued operations:
Lease liability, long-term	0	24,207
Total long-term liabilities of discontinued operations	0	24,207
Total liabilities of discontinued operations	$ 0	$ 112,490