XML 149 R146.htm IDEA: XBRL DOCUMENT
v3.25.3

Segment information (Parenthetical) (Detail) - JPY (¥) ¥ in Millions | Sep. 30, 2025 | Mar. 31, 2025
--- | --- | ---
O R I X USA [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill and intangible assets acquired in business combination attributed to non controlling interest | ¥ 0 | ¥ 0
Goodwill and intangible assets attributed to redeemable non controlling interest | 45,355 | 0
ORIX Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Goodwill and intangible assets acquired in business combination attributed to non controlling interest | 6,841 | 6,660
Goodwill and intangible assets attributed to redeemable non controlling interest | ¥ 0 | ¥ 0

X
- Definition Goodwill and intangible assets acquired in business combination attributed to non controlling interest. + References No definition available. + Details
Name: | ck0001070304_GoodwillAndIntangibleAssetsAcquiredInBusinessCombinationAttributedToNonControllingInterest
Namespace Prefix: | ck0001070304_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Goodwill and intangible assets attributed to redeemable non controlling interest. + References No definition available. + Details
Name: | ck0001070304_GoodwillAndIntangibleAssetsAttributedToRedeemableNonControllingInterest
Namespace Prefix: | ck0001070304_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ck0001070304_ORIXUsaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=ck0001070304_OrixEuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |