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Cash Flow Information - Additional Information (Detail) In Millions | 12 Months Ended |
--- | --- | ---
Mar. 31, 2011 USD ($) | Mar. 31, 2011 JPY (¥) | Mar. 31, 2010 JPY (¥) | Mar. 31, 2009 JPY (¥) | Mar. 31, 2010 DAIKYO JPY (¥) | Mar. 31, 2009 DAIKYO JPY (¥)
Schedule of Cash Flow, Supplemental [Line Items] |  |  |  |  |  |
Non-cash investing activities, liabilities assumed | $ 1,719 | ¥ 142,906 | ¥ 27,688 | ¥ 38,120 |  |
Non-cash investing activities, common stocks issued in connection with acquisitions |  |  |  | 1,673 |  |
Real estate under operating leases transferred from installment loans and investment in securities as a result of real estate collateral acquired from non-recourse loans | 719 | 59,783 | 83,018 | 39,905 |  |
Non-cash investing activities, common stocks received in connection with a sale of subsidiary |  |  |  |  | 26,617 | 9,439
Loans to affiliate | 743 | 61,820 | 116,223 |  | 95,547 |
Investment in affiliates | 3,747 | 311,556 | 293,488 |  | 25,828 |
Investment in affiliates, increased during the period |  |  | ¥ 121,375 |  | ¥ 3,789 |

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- Definition Long-Term advances receivable form a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 2 -Article 6 + Details
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- Definition The net of the gross additions and gross reductions to the investment in and advance to the affiliate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 14 -Paragraph 1 -Article 12 + Details
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- Definition The total amount of [all] liabilities that an Entity assumes in acquiring a business or in consideration for an asset received in a noncash (or part noncash) acquisition. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 + Details
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- Definition The value of the consideration received for selling an asset or business through a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 + Details
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- Definition Value of real estate transferred in noncash transactions during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 + Details
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