Financial Assets and Liabilities at Fair Value (Detail) - USD ($) $ in Thousands |
Sep. 30, 2015 |
Dec. 31, 2014 |
| 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
|
|
|