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Income Taxes - Narrative (Details) - USD ($)
12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Income Taxes [Line Items]      
Income tax expense (benefit) $ 100,000 $ (24,200,000) $ (100,300,000)
Operating loss carryforwards, subject to expiration 157,800,000    
Tax credit carryforward, amount 9,100,000    
Income tax penalties and interest expense (benefit) (7,300,000) (9,100,000) $ 5,300,000
Interest on income taxes accrued   $ 4,200,000  
State and Local Jurisdiction      
Income Taxes [Line Items]      
Operating loss carryforwards, subject to expiration 331,500,000    
United States | Domestic Tax Jurisdiction      
Income Taxes [Line Items]      
Operating loss carryforwards 389,500,000    
Canada      
Income Taxes [Line Items]      
Operating loss carryforwards, subject to expiration 55,200,000    
India      
Income Taxes [Line Items]      
Operating loss carryforwards, subject to expiration 33,700,000    
Luxembourg      
Income Taxes [Line Items]      
Operating loss carryforwards, subject to expiration $ 404,100,000