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Fair Value Disclosures - Investments Measured at Fair Value Based on Net Asset Value Per Share (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Feb. 28, 2025 | Aug. 31, 2025 | Nov. 30, 2024
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Fair Value |  | $ 1,499,292 | $ 1,252,689
Unfunded Commitments |  | 202,053 | 293,780
Hedge Funds |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Fair Value |  | 704,965 | 660,720
Unfunded Commitments |  | $ 0 | $ 0
Hedge Funds | Debt Instrument, Redemption, Period One |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  |  | 53.00%
Hedge Funds | Debt Instrument, Redemption, Period One | 90 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  | 49.00% |
Notice period redemption of investment prior written notice period | 90 days | 90 days |
Hedge Funds | Debt Instrument, Redemption, Period One | 45 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Notice period redemption of investment prior written notice period | 45 days | 45 days |
Hedge Funds | Debt Instrument, Redemption, Period Two |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  |  | 47.00%
Hedge Funds | Debt Instrument, Redemption, Period Two | 60 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  | 51.00% |
Notice period redemption of investment prior written notice period | 60 days | 60 days |
Hedge Funds | Debt Instrument, Redemption, Period Two | 45 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Notice period redemption of investment prior written notice period | 45 days | 45 days |
Private Equity Funds |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Fair Value |  | $ 71,189 | $ 60,215
Unfunded Commitments |  | $ 27,069 | $ 30,530
Percentage of not redeemable investments |  | 100.00% | 100.00%
Estimated period for the liquidation of the underlying assets, minimum | 1 year | 1 year |
Expected period for the liquidation of the underlying assets, maximum | 9 years | 9 years |
Credit Funds |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Fair Value |  | $ 511,884 | $ 430,429
Unfunded Commitments |  | $ 23,856 | $ 30,554
Percentage of not redeemable investments |  | 38.00% | 25.00%
Credit Funds | Debt Instrument, Redemption, Period One | 90 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  | 60.00% | 72.00%
Notice period redemption of investment prior written notice period | 90 days | 90 days |
Credit Funds | Debt Instrument, Redemption, Period Two | 30 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  | 2.00% | 3.00%
Notice period redemption of investment prior written notice period | 30 days | 30 days |
Real Estate and Other Funds |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Fair Value |  | $ 211,254 | $ 101,325
Unfunded Commitments |  | $ 151,128 | $ 232,696
Percentage of not redeemable investments |  | 75.00% | 100.00%
Real Estate and Other Funds | 90 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  | 25.00% |
Notice period redemption of investment prior written notice period |  | 90 days |
Short-term Investments | 90 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Notice period redemption of investment prior written notice period | 90 days | 90 days |
Short-term Investments | 120 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Notice period redemption of investment prior written notice period | 120 days | 120 days |

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