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Operating and Reporting Segments (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
May 31, 2022
May 31, 2021
May 31, 2022
May 31, 2021
Doma Holdings, Inc        
Segment Reporting Information [Line Items]        
Unconsolidated entities ownership percentage 25.00%   25.00%  
Lennar's carrying value of investments $ 32,000,000   $ 32,000,000  
Financial Services | Warehouse Repurchase Facility        
Segment Reporting Information [Line Items]        
Collateral percentage 80.00%   80.00%  
CMBS | Financial Services        
Segment Reporting Information [Line Items]        
Impairment charges for CMBS securities $ 0 $ 0 $ 0 $ 0