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Investments in Unconsolidated Entity - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2026	Aug. 31, 2025	Aug. 31, 2026	Aug. 31, 2025	May 31, 2026	Feb. 28, 2026
Schedule of Equity Method Investments [Line Items]
Equity in earnings of unconsolidated subsidiary	$ 6,789	$ 59,345	$ 7,298	$ 232,868
Distribution on investment in AVAIL joint venture			0	273,223
Proceeds from return of investment on the AVAIL JV			$ 15,745	0
AIS Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage of investment	40.00%		40.00%		40.00%
Proceeds from Equity Method Investment, Distribution, Return of Capital			$ 15,700	$ 273,200
Investment in AVAIL joint venture	$ 11,464		11,464			$ 19,960
AIS Joint Venture \| Discontinued Operations, Disposed of by Sale \| AZZ Infrastructure Solutions
Schedule of Equity Method Investments [Line Items]
Equity in earnings of unconsolidated subsidiary	6,800		7,300
Investment in AVAIL joint venture	$ 11,500		$ 11,500