Securitization Activities - Summary of Retained Interests in SPEs (Details) - USD ($) $ in Millions |
May 31, 2022 |
Nov. 30, 2021 |
|---|---|---|
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Total RMBS securitization assets | $ 255.2 | $ 330.2 |
| Total CMBS securitization assets | 2,549.5 | 2,201.8 |
| CLOs | 4,676.1 | 3,382.3 |
| Consumer and other loans | 2,626.9 | 2,271.4 |
| U.S. government agency RMBS | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Retained Interests | 3.7 | 4.9 |
| U.S. government agency CMBS | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Retained Interests | 180.1 | 69.2 |
| CLOs | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Retained Interests | 37.0 | 31.0 |
| Consumer and other loans | ||
| Debt and Equity Securities, FV-NI [Line Items] | ||
| Retained Interests | $ 142.0 | $ 136.4 |