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Securitization Activities - Retained Interests in SPEs (Details) - USD ($) $ in Millions | May 31, 2025 | Nov. 30, 2024
--- | --- | ---
Securitization Vehicles [Line Items] |  |
Total RMBS securitization assets | $ 2,045.0 | $ 3,956.8
Total CMBS securitization assets | 1,345.2 | 1,817.1
CLOs | 10,416.7 | 9,001.9
Consumer and other loans | 1,674.3 | 1,424.4
U.S. government agency RMBS |  |
Securitization Vehicles [Line Items] |  |
Retained Interests | 18.6 | 105.7
U.S. government agency CMBS |  |
Securitization Vehicles [Line Items] |  |
Retained Interests | 48.0 | 91.8
CLOs |  |
Securitization Vehicles [Line Items] |  |
Retained Interests | 60.2 | 37.2
Consumer and other loans |  |
Securitization Vehicles [Line Items] |  |
Retained Interests | $ 58.7 | $ 52.1

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