v3.3.0.814

Financial Assets and Liabilities at Fair Value (Detail) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Total Blackstone's Treasury Cash Management Strategies |  | $ 2,158,590 |  | $ 1,666,061
Money Market Funds |  | 308,504 |  | 198,278
Net Investment Hedges - Foreign Currency Contracts |  |  |  | 523
Freestanding Derivatives, Assets |  | 6,048 |  | 15,009
Investments of Consolidated Funds |  | 4,743,145 |  | 11,375,407
Freestanding Derivatives, Liabilities |  | 30,769 |  | 30,528
Other Investments |  | 159,056 |  | 146,251
Total Financial Assets |  | 7,552,253 |  | 13,430,207
Securities Sold, Not Yet Purchased |  | 173,707 |  | 85,878
Total Financial Liabilities |  | 3,560,084 |  | 6,913,510
Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 6,048 |  | 14,486
Freestanding Derivatives, Liabilities |  | 30,525 |  | 30,528
Loans and Receivables |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Loans and Receivables |  | 179,255 |  | 40,397
Corporate Loans |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Loans |  | 3,194,584 |  | 6,279,592
Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Investment Funds | [1] | 154,183 |  | 1,103,210
Equity Securities | [1] | 210,855 |  | 352,360
Partnership and LLC Interests | [1] | 626,281 |  | 1,683,562
Debt Instruments | [1] | 203,223 |  | 1,608,284
Investments of Consolidated Funds | [1] | 4,743,145 |  | 11,375,407
Investments Of Consolidated Blackstone Funds | Corporate Loans |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Loans | [1] | 3,194,584 |  | 6,279,592
Blackstone's Treasury Cash Management Strategies |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Investment Funds |  | 235,427 |  | 307,111
Equity Securities |  | 242,534 |  | 71,746
Debt Instruments |  | 1,547,752 |  | 1,226,195
Other |  | 132,877 |  | 61,009
Total Blackstone's Treasury Cash Management Strategies |  | 2,158,590 |  | 1,666,061
Credit Default Swap | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  |  |  | 85
Freestanding Derivatives, Liabilities |  | 6,413 |  | 868
Credit Default Swap | Investments Of Consolidated Blackstone Funds | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities |  | 4,454 |  | 2,514
Other |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other |  |  |  | 44,513
Other | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other | [1] |  |  | 44,513
Corporate Bonds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Bonds |  | 351,674 |  | 292,690
Corporate Bonds | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Bonds | [1] | 351,674 |  | 292,690
Foreign Currency Contracts |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net Investment Hedges - Foreign Currency Contracts |  |  |  | 523
Net Investment Hedges - Foreign Currency Contracts |  | 244 |  |
Foreign Currency Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 2,443 |  | 2,798
Freestanding Derivatives, Liabilities |  | 1,849 |  | 681
Foreign Currency Contracts | Investments Of Consolidated Blackstone Funds | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets | [1] | 2,345 |  | 8,915
Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 1,260 |  | 407
Freestanding Derivatives, Liabilities |  | 11,834 |  |
Interest Rate Contracts | Investments Of Consolidated Blackstone Funds | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets | [1] |  |  | 2,281
Liabilities of Consolidated Funds and CLO Vehicles | Credit Default Swap | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities | [1] | 4,454 |  | 2,514
Liabilities of Consolidated Funds and CLO Vehicles | Foreign Currency Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities | [1] | 5,975 |  | 21,875
Liabilities of Consolidated Funds and CLO Vehicles | Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities |  |  |  | 4,590
Liabilities of Consolidated Funds and CLO Vehicles | Senior Secured Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1] | 3,244,579 | [2] | 6,448,352
Liabilities of Consolidated Funds and CLO Vehicles | Subordinated Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1] | 111,029 | [2] | 348,752
Net Asset Value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other Investments |  | 26,070 |  | 9,593
Total Financial Assets |  | 430,920 |  | 1,224,319
Net Asset Value | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Investment Funds | [1] | 154,183 |  | 1,103,210
Investments of Consolidated Funds | [1] | 154,183 |  | 1,103,210
Net Asset Value | Blackstone's Treasury Cash Management Strategies |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instruments |  | 117,790 |  | 50,507
Other |  | 132,877 |  | 61,009
Total Blackstone's Treasury Cash Management Strategies |  | 250,667 |  | 111,516
Level 1 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Money Market Funds |  | 308,504 |  | 198,278
Other Investments |  | 29,282 |  | 31,731
Total Financial Assets |  | 881,446 |  | 668,076
Total Financial Liabilities |  | 3,827 |  | 1,357
Level 1 | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Equity Securities | [1] | 65,038 |  | 58,934
Investments of Consolidated Funds | [1] | 65,038 |  | 58,947
Level 1 | Blackstone's Treasury Cash Management Strategies |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Investment Funds |  | 235,427 |  | 307,111
Equity Securities |  | 242,534 |  | 71,746
Total Blackstone's Treasury Cash Management Strategies |  | 477,961 |  | 378,857
Level 1 | Other | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other | [1] |  |  | 13
Level 1 | Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 661 |  | 263
Freestanding Derivatives, Liabilities |  | 3,827 |  |
Level 1 | Liabilities of Consolidated Funds and CLO Vehicles | Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities |  |  |  | 1,357
Level 2 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other Investments |  |  |  | 436
Total Financial Assets |  | 5,074,479 |  | 8,913,207
Securities Sold, Not Yet Purchased |  | 173,707 |  | 85,878
Total Financial Liabilities |  | 3,556,257 |  | 115,049
Level 2 | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Equity Securities | [1] | 53,506 |  | 114,115
Partnership and LLC Interests | [1] | 118,342 |  | 187,140
Debt Instruments | [1] | 171,179 |  | 1,502,314
Investments of Consolidated Funds | [1] | 3,686,068 |  | 7,818,427
Level 2 | Investments Of Consolidated Blackstone Funds | Corporate Loans |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Loans | [1] | 2,992,996 |  | 5,691,517
Level 2 | Blackstone's Treasury Cash Management Strategies |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instruments |  | 1,385,369 |  | 1,090,794
Total Blackstone's Treasury Cash Management Strategies |  | 1,385,369 |  | 1,090,794
Level 2 | Credit Default Swap | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  |  |  | 85
Freestanding Derivatives, Liabilities |  | 6,413 |  | 868
Level 2 | Other | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other | [1] |  |  | 19,455
Level 2 | Corporate Bonds | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Bonds | [1] | 347,700 |  | 292,690
Level 2 | Foreign Currency Contracts |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Net Investment Hedges - Foreign Currency Contracts |  |  |  | 523
Net Investment Hedges - Foreign Currency Contracts |  | 244 |  |
Level 2 | Foreign Currency Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 2,443 |  | 2,798
Freestanding Derivatives, Liabilities |  | 1,849 |  | 681
Level 2 | Foreign Currency Contracts | Investments Of Consolidated Blackstone Funds | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets | [1] | 2,345 |  | 8,915
Level 2 | Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets |  | 599 |  | 144
Freestanding Derivatives, Liabilities |  | 8,007 |  |
Level 2 | Interest Rate Contracts | Investments Of Consolidated Blackstone Funds | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Assets | [1] |  |  | 2,281
Level 2 | Liabilities of Consolidated Funds and CLO Vehicles | Credit Default Swap | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities | [1] | 4,454 |  | 2,514
Level 2 | Liabilities of Consolidated Funds and CLO Vehicles | Foreign Currency Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities | [1] | 5,975 |  | 21,875
Level 2 | Liabilities of Consolidated Funds and CLO Vehicles | Interest Rate Contracts | Freestanding Derivatives |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Freestanding Derivatives, Liabilities |  |  |  | 3,233
Level 2 | Liabilities of Consolidated Funds and CLO Vehicles | Senior Secured Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1],[2] | 3,244,579 |  |
Level 2 | Liabilities of Consolidated Funds and CLO Vehicles | Subordinated Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1],[2] | 111,029 |  |
Level 3 |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other Investments |  | 103,704 |  | 104,491
Total Financial Assets |  | 1,165,408 |  | 2,624,605
Total Financial Liabilities |  |  |  | 6,797,104
Level 3 | Loans and Receivables |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Loans and Receivables |  | 179,255 |  | 40,397
Level 3 | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Equity Securities | [1] | 92,311 |  | 179,311
Partnership and LLC Interests | [1] | 507,939 |  | 1,496,422
Debt Instruments | [1] | 32,044 |  | 105,970
Investments of Consolidated Funds | [1] | 837,856 |  | 2,394,823
Level 3 | Investments Of Consolidated Blackstone Funds | Corporate Loans |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Loans | [1] | 201,588 |  | 588,075
Level 3 | Blackstone's Treasury Cash Management Strategies |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Debt Instruments |  | 44,593 |  | 84,894
Total Blackstone's Treasury Cash Management Strategies |  | 44,593 |  | 84,894
Level 3 | Other | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Other | [1] |  |  | 25,045
Level 3 | Corporate Bonds | Investments Of Consolidated Blackstone Funds |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Corporate Bonds | [1] | $ 3,974 |  |
Level 3 | Liabilities of Consolidated Funds and CLO Vehicles | Senior Secured Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1] |  |  | 6,448,352
Level 3 | Liabilities of Consolidated Funds and CLO Vehicles | Subordinated Notes |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Fair value of Notes | [1] |  |  | $ 348,752
[1] | Pursuant to GAAP consolidation guidance, the Partnership is required to consolidate all VIEs in which it has been identified as the primary beneficiary, including certain CLO vehicles, and other funds in which a consolidated entity of the Partnership, as the general partner of the fund, is presumed to have control. While the Partnership is required to consolidate certain funds, including CLO vehicles, for GAAP purposes, the Partnership has no ability to utilize the assets of these funds and there is no recourse to the Partnership for their liabilities since these are client assets and liabilities.
[2] | Senior and subordinate notes issued by CLO vehicles are classified based on the more observable fair value of CLO assets less (a) the fair value of any beneficial interests held by Blackstone, and (b) the carrying value of any beneficial interests that represent compensation for services.

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