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Investments in Unconsolidated Entity - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2024
Nov. 30, 2023
Feb. 29, 2024
Schedule of Equity Method Investments [Line Items]          
Equity in earnings of unconsolidated subsidiaries $ (7,168) $ (8,742) $ (12,470) $ (11,136)  
AIS Joint Venture          
Schedule of Equity Method Investments [Line Items]          
Ownership percentage of investment 40.00%   40.00%    
Investment in joint venture $ 102,121   $ 102,121   $ 98,169
Excess of equity method investment from carrying amount 10,200   10,200    
AIS Joint Venture | AZZ Infrastructure Solutions          
Schedule of Equity Method Investments [Line Items]          
Equity in earnings of unconsolidated subsidiaries     12,500    
AIS Joint Venture | AZZ Infrastructure Solutions | Discontinued Operations, Disposed of by Sale          
Schedule of Equity Method Investments [Line Items]          
Investment in joint venture $ 102,100   $ 102,100