Reconciliation of Total Segments to Income (loss) Before Provision for Taxes and Total Assets (Parenthetical) (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
|
| Segment Reporting Information [Line Items] | ||||
| Fund Management Fees and Performance Fees Eliminated in Consolidation and Transactional Investment Loss | $ (45,027) | $ (25,613) | $ (80,519) | $ (64,531) |
| Fund Expenses Added in Consolidation | 10,175 | 7,649 | 53,218 | 7,668 |
| Non-Controlling Interests in Income of Consolidated Entities | 18,151 | 32,163 | 187,970 | 284,463 |
| Transaction-Related Other Income/Loss | (166) | (5,517) | (1,966) | (10,178) |
| Total Other Income | (16,867) | 8,682 | 158,703 | 217,422 |
| Economic Income (Loss) | (388,856) | 837,875 | 1,771,954 | 3,014,116 |
| Amortization of Intangibles | (30,624) | (27,828) | (81,243) | (85,141) |
| IPO and Acquisition-Related Charges | (80,962) | (209,240) | (504,842) | (564,832) |
| Non-Controlling Interests in Income of Consolidated Entities | 18,151 | 32,163 | 187,970 | 284,463 |
| Total Consolidation Adjustments and Reconciling Items | (93,435) | (204,905) | (398,115) | (365,510) |
| Income (Loss) Before Provision (Benefit) for Taxes | $ (482,291) | $ 632,970 | $ 1,373,839 | $ 2,648,606 |