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Investment in Operating Leases - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified | 12 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
Schedule of Operating Leases [Line Items] |  |  |
Gains on sales of operating lease assets other than real estate | ¥ 17,820 | ¥ 14,032 | ¥ 14,721
Maximum |  |  |
Schedule of Operating Leases [Line Items] |  |  |
Operating lease contracts, non- cancelable lease terms | 23 years |  |

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- Definition Operating Lease Expiration Period + References No definition available. + Details
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- Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6453862&loc=d3e41205-112714 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 40 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6455249&loc=d3e44908-112734 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 40 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6453862&loc=d3e41188-112714 + Details
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