v2.4.0.6
Securitizations (Details) (USD $)
9 Months Ended
Nov. 30, 2011
Feb. 28, 2011
Nov. 30, 2010
Feb. 28, 2010
Securitizations [Abstract]        
Servicing fees of securitized receivables, percentage 1.00%      
Total ending managed receivables $ 4,823,800,000 $ 4,334,600,000 $ 4,288,100,000 $ 4,112,700,000
Non-recourse notes payable 4,470,000,000 4,010,000,000    
Retained interest $ 0 $ 0