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Operating and Reporting Segments (Commercial Mortgage-Backed Securities) (Details) - Financial Services - USD ($)
$ in Thousands
May 31, 2022
Nov. 30, 2021
Financing Agreement to Purchase Commercial Mortgage Backed Securities | Secured Debt    
Segment Reporting Information [Line Items]    
Outstanding debt, net of debt issuance costs $ 145,633 $ 147,474
Incurred interest rate 3.40% 3.40%
CMBS    
Segment Reporting Information [Line Items]    
Debt Securities, Held-to-maturity $ 155,820 $ 157,808