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Reconciliation of Realized and Net Change in Unrealized Gains (Losses) to Other Income (Loss) - Net Gains (Losses) from Fund Investment Activities in Condensed Consolidated Statements of Operations (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2013
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Sep. 30, 2012
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Sep. 30, 2013
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Sep. 30, 2012
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| Gain (Loss) on Investments [Line Items] | ||||
| Realized Gains (Losses) | $ (2,932) | $ 6,162 | $ 95,403 | $ (4,279) |
| Net Change in Unrealized Gains (Losses) | 46,872 | (152,801) | (36,855) | 235,368 |
| Realized and Net Change in Unrealized Gains (Losses) from Consolidated Blackstone Funds | 43,940 | (146,639) | 58,548 | 231,089 |
| Interest and Dividend Revenue Attributable to Consolidated Blackstone Funds | 44,012 | 10,679 | 137,580 | 169,323 |
| Other Income (Loss) - Net Gains (Losses) from Fund Investment Activities | $ 87,952 | $ (135,960) | $ 196,128 | $ 400,412 |