XML 174 R115.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Investment in Affiliates - Additional Information (Detail)
In Millions, except Share data, unless otherwise specified
12 Months Ended 12 Months Ended 12 Months Ended
Mar. 31, 2011
USD ($)
Mar. 31, 2011
JPY (¥)
Mar. 31, 2010
JPY (¥)
Mar. 31, 2009
JPY (¥)
Mar. 31, 2011
ORIX JREIT Inc.
USD ($)
Mar. 31, 2011
ORIX JREIT Inc.
JPY (¥)
Mar. 31, 2010
ORIX JREIT Inc.
JPY (¥)
Mar. 31, 2009
ORIX JREIT Inc.
JPY (¥)
Mar. 31, 2010
DAIKYO
JPY (¥)
Mar. 31, 2009
DAIKYO
JPY (¥)
Mar. 31, 2011
DAIKYO
Mar. 31, 2010
Fuji Fire And Marine Insurance Company Limited
JPY (¥)
Mar. 31, 2009
Fuji Fire And Marine Insurance Company Limited
JPY (¥)
Mar. 31, 2010
Certain investment in affiliates
JPY (¥)
Mar. 31, 2010
ORIX Credit
JPY (¥)
Mar. 31, 2011
ORIX Credit
Mar. 31, 2010
ORIX Credit
Change During Period, Fair Value Disclosure
JPY (¥)
Mar. 31, 2011
Monex Group
USD ($)
Mar. 31, 2011
Monex Group
JPY (¥)
Mar. 31, 2010
Monex Group
JPY (¥)
Schedule of Equity Method Investments [Line Items]                                        
Investment in affiliates, aggregate investment $ 648 ¥ 53,851 ¥ 55,531                                  
Investment in affiliates, market value 652 54,237 69,071                                  
Investment in affiliates, excess of cost over the underlying equity at acquisition dates 387 32,187 24,856                                  
Investment in affiliates, dividends received 35 2,875 1,702 11,046                                
Asset management fee paid         19 1,555 1,572 1,672                        
Gains on the sales office buildings 61 5,103 6,841 24,346 47 3,905 3,564 23,895                        
Ownership interest transferred                             51.00%          
Sales of stock by subsidiaries or affiliates, value of shares received in exchange                 26,617 9,439                    
Investment in affiliates, percentage of ownership                 31.00% 41.00% 31.00%   20.00%   49.00% 49.00%   21.00% 21.00% 22.00%
Gains (losses) on sales of stock by subsidiaries and affiliates     2,724             3,576         3,571   3,430     9,337
Sales of stock by subsidiaries or affiliates, number of shares issued                 99,950,000     156,976,000 117,000,000         140,000 140,000  
Sales of stock by subsidiaries or affiliates, price per share                 ¥ 182     ¥ 86 ¥ 135           ¥ 22,765  
Sales of stock by subsidiaries or affiliates, value of shares issued                 18,216     13,500 15,795         38 3,187  
Shares issued for acquisiton of Boom Group                                   65,685 65,685  
Sales of stock by subsidiaries or affiliates, percentage of ownership before the transaction                 41.00%     20.00% 26.00%         22.00% 22.00%  
Sales of stock by subsidiaries or affiliates, percentage of ownership after the transaction                 31.00%     15.00% 20.00%         21.00% 21.00%  
Adjustment to the carrying amount of investments     121,375           3,789     1,839 4,574         9 710  
Other than temporary impairment losses related to certain affiliates whose shares were listed       29,965                                
Loss on change in fair value of an investment that is measured at fair value by the election of fair value option under ASC 825-10                           6,954            
Investment in affiliates 3,747 311,556 293,488           25,828           123,590          
Loans to affiliate $ 743 ¥ 61,820 ¥ 116,223           ¥ 95,547           ¥ 96,680