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Realized and Net Change in Unrealized Gains (Losses) on Investments (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
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Jun. 30, 2011
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| Gain (Loss) on Investments [Line Items] | ||||
| Total realized and net change in unrealized gains (losses) | $ 177,693 | $ (106,287) | $ 377,728 | $ (171,076) |
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Consolidated Blackstone Funds
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| Gain (Loss) on Investments [Line Items] | ||||
| Realized Gains (Losses) | (54,791) | 36,654 | (10,441) | 106,755 |
| Net Change in Unrealized Gains (Losses) | 232,484 | (142,941) | 388,169 | (277,831) |
| Total realized and net change in unrealized gains (losses) | $ 177,693 | $ (106,287) | $ 377,728 | $ (171,076) |