Segment Information - Additional Information (Detail) |
12 Months Ended |
|---|---|
|
Mar. 31, 2026
Segments
| |
| Segment Reporting Information [Line Items] | |
| Number of Reportable Segments | 10 |
| Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] | srt:ChiefExecutiveOfficerMember |
| Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description | regularly reviews the amounts equivalent to income before income taxes attributable to ORIX Corporation Shareholders for each business segment with available financial information in order to allocate resources and assess performance. |