v3.26.1
ORIX Corporation Shareholders' Equity (Changes in Number of Shares Issued) (Detail) - shares
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Uncategorized [Abstract]      
Beginning balance 1,162,962,244 1,214,961,054 1,234,849,342
Cancellation of treasury stock (38,855,620) (51,998,810) (19,888,288)
Ending balance 1,124,106,624 1,162,962,244 1,214,961,054