Summary of Fair Value by Strategy Type Alongside Consolidated Funds of Hedge Funds' Remaining Unfunded Commitments and Ability to Redeem Such Investments (Detail) $ in Thousands |
Sep. 30, 2015
USD ($)
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|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | $ 430,920 | |||||||||||
| Unfunded Commitments | 0 | |||||||||||
| Diversified Instruments | ||||||||||||
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | 95,927 | [1] | ||||||||||
| Unfunded Commitments | 0 | [1] | ||||||||||
| Credit Driven | ||||||||||||
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | 271,999 | [2] | ||||||||||
| Unfunded Commitments | 0 | [2] | ||||||||||
| Event Driven | ||||||||||||
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | 60,296 | [3] | ||||||||||
| Unfunded Commitments | 0 | [3] | ||||||||||
| Equity | ||||||||||||
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | 244 | [4] | ||||||||||
| Unfunded Commitments | 0 | [4] | ||||||||||
| Commodities | ||||||||||||
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] | ||||||||||||
| Fair Value | 2,454 | [5] | ||||||||||
| Unfunded Commitments | $ 0 | [5] | ||||||||||
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