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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 | 12 Months Ended
--- | --- | ---
Feb. 28, 2026 | Feb. 28, 2025 | Nov. 30, 2025
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Alternative investment | $ 1,610,326 |  | $ 1,681,523
Unfunded Commitments | 158,589 |  | 165,547
Hedge Funds |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Alternative investment | 781,873 |  | 888,880
Unfunded Commitments | $ 0 |  | $ 0
Percentage of not redeemable investments | 20.00% |  | 17.00%
Hedge Funds | Debt Instrument, Redemption, Period One |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  |  | 42.00%
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 | 41.00% |  |
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 |  |  | 41.00%
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 | 39.00% |  |
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] |  |  |
Alternative investment | $ 69,295 |  | $ 66,476
Unfunded Commitments | $ 23,473 |  | $ 26,828
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] |  |  |
Alternative investment | $ 497,569 |  | $ 490,321
Unfunded Commitments | $ 23,847 |  | $ 23,847
Percentage of not redeemable investments | 45.00% |  | 42.00%
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 | 53.00% |  | 56.00%
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% |  | 2.00%
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] |  |  |
Alternative investment | $ 261,589 |  | $ 235,846
Unfunded Commitments | $ 111,269 |  | $ 114,872
Percentage of not redeemable investments | 88.00% |  | 81.00%
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 | 12.00% |  |
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 |
Other Funds | 90 Days Prior Written Notice |  |  |
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] |  |  |
Percentage of redeemable investments |  |  | 19.00%
Notice period redemption of investment prior written notice period |  |  | 90 days

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