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Summarized Financial Information of Partnership's Equity Method Investments (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Schedule of Equity Method Investments [Line Items]      
Investments $ 116,277,556 $ 90,820,613 $ 70,860,453
Other Assets 7,753,214 6,741,144 5,631,149
Total Assets 124,030,770 97,561,757 76,491,602
Debt 5,934,982 3,924,904 2,817,756
Other Liabilities 2,777,097 2,859,958 1,865,176
Total Liabilities 8,712,079 6,784,862 4,682,932
Partners' Capital 115,318,691 90,776,895 71,808,670
Total Liabilities and Partners' Capital 124,030,770 97,561,757 76,491,602
Interest Income 1,066,180 1,191,461 663,463
Other Income 984,547 428,249 788,620
Interest Expense (158,673) (123,269) (58,812)
Other Expenses (439,766) (323,804) (260,028)
Net Realized and Unrealized Gain from Investments 25,336,533 11,057,981 5,905,990
Net Income 26,788,821 12,230,618 7,039,233
Private Equity
      
Schedule of Equity Method Investments [Line Items]      
Investments 35,516,755 31,308,915 25,788,678
Other Assets 389,265 1,289,961 321,271
Total Assets 35,906,020 32,598,876 26,109,949
Debt 1,691,018 1,478,929 863,672
Other Liabilities 54,909 91,519 194,873
Total Liabilities 1,745,927 1,570,448 1,058,545
Partners' Capital 34,160,093 31,028,428 25,051,404
Total Liabilities and Partners' Capital 35,906,020 32,598,876 26,109,949
Interest Income 294,171 350,153 116
Other Income 10,580 13,255 516,729
Interest Expense (37,846) (23,060) (14,826)
Other Expenses (88,957) (48,926) (50,591)
Net Realized and Unrealized Gain from Investments 9,002,197 3,916,697 1,510,622
Net Income 9,180,145 4,208,119 1,962,050
Real Estate
      
Schedule of Equity Method Investments [Line Items]      
Investments 57,053,881 40,230,098 29,856,855
Other Assets 3,441,977 1,714,990 1,736,245
Total Assets 60,495,858 41,945,088 31,593,100
Debt 3,013,762 1,336,305 1,384,867
Other Liabilities 886,445 703,412 334,175
Total Liabilities 3,900,207 2,039,717 1,719,042
Partners' Capital 56,595,651 39,905,371 29,874,058
Total Liabilities and Partners' Capital 60,495,858 41,945,088 31,593,100
Interest Income 140,879 128,624 82,166
Other Income 752,184 294,105 159,400
Interest Expense (51,544) (39,103) (19,142)
Other Expenses (108,580) (64,569) (54,907)
Net Realized and Unrealized Gain from Investments 13,225,141 4,979,027 4,086,549
Net Income 13,958,080 5,298,084 4,254,066
Hedge Fund Solutions
      
Schedule of Equity Method Investments [Line Items]      
Investments 11,529,163 8,193,041 6,322,821
Other Assets 1,114,404 1,173,627 1,167,162
Total Assets 12,643,567 9,366,668 7,489,983
Debt 63,830 65,103 123,925
Other Liabilities 689,964 642,925 461,854
Total Liabilities 753,794 708,028 585,779
Partners' Capital 11,889,773 8,658,640 6,904,204
Total Liabilities and Partners' Capital 12,643,567 9,366,668 7,489,983
Interest Income 224 194 89
Other Income 89,632 36,797 19,275
Interest Expense (310) (1,024) (172)
Other Expenses (71,326) (60,114) (51,063)
Net Realized and Unrealized Gain from Investments 1,127,173 798,892 (71,790)
Net Income 1,145,393 774,745 (103,661)
Credit
      
Schedule of Equity Method Investments [Line Items]      
Investments 12,150,918 11,066,214 8,887,081
Other Assets 2,678,742 2,516,388 2,355,318
Total Assets 14,829,660 13,582,602 11,242,399
Debt 1,165,405 1,043,595 444,313
Other Liabilities 1,131,557 1,401,910 848,534
Total Liabilities 2,296,962 2,445,505 1,292,847
Partners' Capital 12,532,698 11,137,097 9,949,552
Total Liabilities and Partners' Capital 14,829,660 13,582,602 11,242,399
Interest Income 630,902 712,490 581,090
Other Income 30,937 7,283 26,760
Interest Expense (68,973) (60,082) (24,672)
Other Expenses (105,706) (101,451) (78,427)
Net Realized and Unrealized Gain from Investments 1,979,078 1,362,351 380,609
Net Income 2,466,238 1,920,591 885,360
Other
      
Schedule of Equity Method Investments [Line Items]      
Investments 26,839 [1] 22,345 [1] 5,018 [1]
Other Assets 128,826 [1] 46,178 [1] 51,153 [1]
Total Assets 155,665 [1] 68,523 [1] 56,171 [1]
Debt 967 [1] 972 [1] 979 [1]
Other Liabilities 14,222 [1] 20,192 [1] 25,740 [1]
Total Liabilities 15,189 [1] 21,164 [1] 26,719 [1]
Partners' Capital 140,476 [1] 47,359 [1] 29,452 [1]
Total Liabilities and Partners' Capital 155,665 [1] 68,523 [1] 56,171 [1]
Interest Income 4 [1]   2 [1]
Other Income 101,214 [1] 76,809 [1] 66,456 [1]
Other Expenses (65,197) [1] (48,744) [1] (25,040) [1]
Net Realized and Unrealized Gain from Investments 2,944 [1] 1,014 [1]  
Net Income $ 38,965 [1] $ 29,079 [1] $ 41,418 [1]
[1] Other represents the summarized financial information of equity method investments whose results, for segment reporting purposes, have been allocated across more than one of Blackstone's segments.