v3.24.1.u1
Auto Loan Receivables (Allowance for Loan Losses) (Details) - USD ($)
 12 Months Ended
Feb. 29, 2024
Feb. 28, 2023
Feb. 28, 2022
Mar. 01, 2020
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Allowance for Credit Loss $ 482,790,000 $ 507,201,000   $ 433,000,000.0
Financing Receivable, Allowance for Credit Loss, Writeoff (561,500,000) (402,500,000)    
Provision for loan losses 310,500,000 317,000,000.0 $ 141,700,000  
Recoveries (2) 226,600,000 $ 159,700,000    
Item As Percent Of Total Ending Managed Receivables, Period Increase (Decrease) $ 24      
Allowance For Loan Losses        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Item as percent of total ending managed receivables 2.78% 3.02%   2.77%
Core managed receivables        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Allowance for Credit Loss $ 389,700,000 $ 401,500,000   $ 377,500,000
Financing Receivable, Allowance for Credit Loss, Writeoff (471,600,000) (348,100,000)    
Provision for loan losses 262,500,000 229,600,000    
Recoveries (2) 197,300,000 142,500,000    
Other managed receivables        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Financing Receivable, Allowance for Credit Loss 93,100,000 105,700,000   $ 55,500,000
Financing Receivable, Allowance for Credit Loss, Writeoff (89,900,000) (54,400,000)    
Provision for loan losses 48,000,000.0 87,400,000    
Recoveries (2) $ 29,300,000 $ 17,200,000