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Operating and Reporting Segments (Commercial Mortgage-Backed Securities) (Details) - Financial Services - USD ($) $ in Thousands | Feb. 28, 2023 | Nov. 30, 2022
--- | --- | ---
Financing Agreement to Purchase Commercial Mortgage Backed Securities | Secured Debt |  |
Segment Reporting Information [Line Items] |  |
Outstanding debt, net of debt issuance costs | $ 131,959 | $ 133,283
Incurred interest rate | 3.40% | 3.40%
CMBS |  |
Segment Reporting Information [Line Items] |  |
Debt Securities, Held-to-maturity | $ 141,854 | $ 143,251

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