v3.26.1
Significant Accounting Policies - Impairment of Long-lived Assets (Details) - USD ($)
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Accounting Policies [Abstract]      
Impairment losses on right-of-use assets $ 14,800,000    
Impairment losses related to leaseholder improvements and furniture and fixtures 3,700,000    
Impairment of long-lived assets $ 18,525,000 $ 0 $ 0