Operating and Reporting Segments (Disclosure of Facilities) (Details) - Financial Services - USD ($)
$ in Thousands
 3 Months Ended
Feb. 28, 2022
Nov. 30, 2021
Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 1,750,000  
Residential facilities maturing October 2021 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 200,000  
Residential facilities maturing December 2021 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 500,000  
Residential facilities maturing April 2022 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 100,000  
Residential facilities maturing July 2022 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 400,000  
Residential facilities | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 1,200,000  
Borrowings under facility 1,021,791 $ 1,482,258
Collateral under facilities 1,059,876 1,539,641
Commercial facilities maturing November 2021 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 100,000  
Commercial facilities maturing December 2021 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 400,000  
Commercial Warehouse Repurchase Facility Due in July 2023 | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 50,000  
Commercial facilities | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity $ 550,000  
Warehouse Repurchase Facility | Warehouse Repurchase Facility    
Line of Credit Facility [Line Items]    
Facility, term 364 days  
Warehouse Repurchase Facility | Commercial facilities    
Line of Credit Facility [Line Items]    
Borrowings under facility $ 29,247 $ 96,294