Discontinued Operations - Discontinued Operations in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Aug. 31, 2022	Feb. 28, 2022
Current assets of discontinued operations:
Assets held for sale	$ 215,068	$ 201,664
Long-term assets of discontinued operations:
Total non-current assets of discontinued operations	186,508	306,212
Current liabilities of discontinued operations:
Liabilities held for sale	79,932	88,283
Long-term liabilities of discontinued operations:
Total long-term liabilities of discontinued operations	21,621	24,207
Discontinued Operations, Disposed of by Sale | AZZ Infrastructure Solutions
Current assets of discontinued operations:
Cash and cash equivalents	3,000	3,000
Accounts receivable	67,321	81,911
Raw materials	47,665	36,581
Work-in-process	11,072	6,445
Finished goods	1	77
Contract assets	80,214	71,762
Prepaid expenses and other	5,795	1,888
Assets held for sale	215,068	201,664
Long-term assets of discontinued operations:
Property, plant and equipment	35,841	37,490
Right-of-use asset	26,322	29,332
Goodwill	195,222	195,222
Intangibles and other	42,454	42,442
Deferred tax asset	1,569	1,726
Less: Impairment of carrying amount of net assets held for sale to estimated sales price	(114,900)	0
Total non-current assets of discontinued operations	186,508	306,212
Total assets of discontinued operations	401,576	507,876
Current liabilities of discontinued operations:
Accounts payable	24,204	19,146
Income tax payable	46	(264)
Accrued salaries and wages	8,769	11,301
Other accrued liabilities	9,250	11,219
Customer deposits	309	387
Contract liabilities	33,508	42,465
Lease liability, short-term	3,846	4,029
Liabilities held for sale	79,932	88,283
Long-term liabilities of discontinued operations:
Lease liability, long-term	21,621	24,207
Total long-term liabilities of discontinued operations	21,621	24,207
Total liabilities of discontinued operations	$ 101,553	$ 112,490