Debt (Schedule Of Debt) (Details) (USD $)
In Thousands, unless otherwise specified
May 31, 2014
Feb. 28, 2014
Debt [Abstract]    
Short-term revolving credit facility $ 1,242 $ 582
Current portion of finance and capital lease obligations 19,715 18,459
Current portion of non-recourse notes payable 253,972 223,938
Total current debt 274,929 242,979
Finance and capital lease obligations, excluding current portion 315,762 315,925
Non-recourse notes payable, excluding current portion 7,373,003 7,024,506
Total debt, excluding current portion 7,688,765 7,340,431
Total debt $ 7,963,694 $ 7,583,410