Fair Value Disclosures - Investments Measured at Fair Value Based on Net Asset Value Per Share (Footnote) (Detail)
|
6 Months Ended |
|
May 31, 2016 |
Nov. 30, 2015 |
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Percentage of investment at fair value in liquidation |
5.00%
|
|
| Equity Long/Short Hedge Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Percentage of redeemable investments |
95.00%
|
100.00%
|
| Fixed Income and High Yield Hedge Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Percentage of investments with no redemption provisions |
9.00%
|
8.00%
|
| Fund of Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Percentage of investments with no redemption provisions |
98.00%
|
95.00%
|
| Estimated period for the liquidation of the underlying assets, Maximum |
6 months
|
|
| Private equity funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Estimated period for the liquidation of the underlying assets, Maximum |
8 years
|
|
| Percentage of investments at fair value expected to liquidate |
99.00%
|
100.00%
|
| Estimated period for the liquidation of the underlying assets, Minimum |
1 year
|
|
| Multi-asset Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Percentage of redeemable investments |
12.00%
|
100.00%
|
| Redemption restriction, percentage |
25.00%
|
|
| Minimum [Member] | Equity Long/Short Hedge Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Notice period redemption of investment prior written notice period |
30 days
|
|
| Minimum [Member] | Multi-asset Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Notice period redemption of investment prior written notice period |
30 days
|
|
| Maximum [Member] | Equity Long/Short Hedge Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Notice period redemption of investment prior written notice period |
90 days
|
|
| Maximum [Member] | Multi-asset Funds [Member] |
|
|
| Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |
|
|
| Notice period redemption of investment prior written notice period |
90 days
|
|