v3.26.1
Organization and Significant Accounting Policies - Goodwill (Details) - USD ($)
3 Months Ended 12 Months Ended
Apr. 30, 2025
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Goodwill        
Impairment of goodwill   $ 240,708,000 $ 18,359,000  
Goodwill $ 256,781,000 2,493,678,000 $ 256,781,000 $ 275,652,000
UGV        
Goodwill        
Impairment of goodwill $ 18,359,000      
Space reporting unit        
Goodwill        
Impairment of goodwill   240,708,000    
Goodwill   $ 291,000,000