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Basis of Presentation - Narrative (Details) - USD ($)
shares in Millions
3 Months Ended 9 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2022
Aug. 31, 2021
Nov. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Cash and cash equivalents held in escrow $ 655,700,000   $ 655,700,000   $ 940,400,000
Cash and cash equivalents held in escrow, deposit period 2 days        
Homebuilding          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Sales incentive per home $ 12,300 $ 7,300 $ 9,500 $ 9,300  
Sales incentive per home, percent of sales revenue 2.50% 1.70% 1.90% 2.20%  
Nonvested shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Nonvested shares granted (in shares)     1.4 1.4