Segment Information (Segment Assets) (Parenthetical) (Detail) - JPY (¥) ¥ in Millions |
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
|---|---|---|---|
| ORIX USA | |||
| Segment Reporting Information [Line Items] | |||
| Goodwill and intangible assets acquired in business combination attributed to non controlling interest | ¥ 0 | ¥ 0 | ¥ 0 |
| Goodwill and intangible assets attributed to redeemable non controlling interest | 47,981 | 0 | 0 |
| ORIX Europe | |||
| Segment Reporting Information [Line Items] | |||
| Goodwill and intangible assets acquired in business combination attributed to non controlling interest | 7,196 | 6,660 | 7,182 |
| Goodwill and intangible assets attributed to redeemable non controlling interest | ¥ 0 | ¥ 0 | ¥ 0 |