XML 82 R76.htm IDEA: XBRL DOCUMENT
v3.23.3

Lease Income (Operating Lease) (Parenthetical) (Detail) - JPY (¥) ¥ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Lessor, Lease, Description [Line Items] |  |  |  |
Gains on sales of operating lease assets |  |  | ¥ 27,792 | ¥ 31,577
Real Estate Asset |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Gains on sales of operating lease assets | ¥ 8,837 | ¥ 2,766 | 10,066 | 12,487
Operating Lease Assets Other than Real Estate |  |  |  |
Lessor, Lease, Description [Line Items] |  |  |  |
Gains on sales of operating lease assets | ¥ 10,165 | ¥ 9,320 | ¥ 17,726 | ¥ 19,090

X
- Definition The net gain (loss) arising from the lessor's sale of assets held- or available-for-lease under contractual arrangements classified as operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 30 -Name Accounting Standards Codification -Section 40 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481222/840-30-40-8 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 40 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482161/360-10-40-3A + Details
Name: | us-gaap_GainLossOnSaleOfLeasedAssetsNetOperatingLeases
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-3 + Details
Name: | us-gaap_LessorLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MajorPropertyClassAxis=ck0001070304_RealEstateAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MajorPropertyClassAxis=ck0001070304_OperatingLeaseAssetsOtherThanRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |