v2.4.0.6
Auto Loan Receivables (Allowance For Loan Losses) (Details) (USD $)
In Millions, unless otherwise specified
 9 Months Ended 9 Months Ended 12 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Nov. 30, 2011
Allowance For Loan Losses [Member]
Feb. 28, 2011
Allowance For Loan Losses [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]        
Balance as of beginning of period $ 38.9 $ 42.2    
Charge-offs (67.1)      
Recoveries 44.7      
Provision for loan losses 24.9      
Balance as of end of period $ 41.4 $ 42.2    
Item as percent of total ending managed receivables     0.90% [1] 0.90% [1]
[1] Percent of total ending managed receivables as of the corresponding reporting date.