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Debt Debt (Schedule of Funding Vehicles) (Details) - USD ($)
$ in Thousands
Feb. 28, 2023
Feb. 28, 2022
Schedule of Funding Vehicles [Line Items]    
Non-recourse Notes Payable $ 16,360,092 $ 15,466,799
Warehouse Facility One [Member]    
Schedule of Funding Vehicles [Line Items]    
Warehouse Facilities Maximum Borrowing Capacity 2,300,000  
Warehouse Facility Three [Member]    
Schedule of Funding Vehicles [Line Items]    
Warehouse Facilities Maximum Borrowing Capacity 2,800,000  
Warehouse Facility Two [Member]    
Schedule of Funding Vehicles [Line Items]    
Warehouse Facilities Maximum Borrowing Capacity 500,000  
Warehouse Facilities [Member]    
Schedule of Funding Vehicles [Line Items]    
Warehouse Facilities Maximum Borrowing Capacity 5,600,000  
Debt Instrument, Unused Borrowing Capacity, Amount 1,950,000  
Non-recourse Notes Payable 3,650,000  
Asset-backed term funding transactions    
Schedule of Funding Vehicles [Line Items]    
Non-recourse Notes Payable $ 12,710,000