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Summary of Fair Value by Strategy Type Alongside Consolidated Funds of Hedge Funds' Remaining Unfunded Commitments and Ability to Redeem Such Investments (Parenthetical) (Detail) | Jun. 30, 2012
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Diversified Instruments |
Net Asset Value As Fair Value By Strategy [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 43.00%
Percentage of investments in hedge funds | 57.00%
Credit Driven |
Net Asset Value As Fair Value By Strategy [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 65.00%
Rate of investee fund manager Blackstone investments | 18.00%
Percentage of investments redeemable as of reporting date | 17.00%
Equity |
Net Asset Value As Fair Value By Strategy [Line Items] |
Percentage of investments unable to be redeemed at, or within 3 months of reporting date | 85.00%
Rate of investee fund manager Blackstone investments | 15.00%

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