Debt (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 3 Months Ended 3 Months Ended
May 31, 2014
Feb. 28, 2014
May 31, 2014
Revolving Credit Facility [Member]
May 31, 2014
Warehouse Facilities [Member]
May 31, 2014
Term Securitizations Debt [Member]
May 31, 2014
Warehouse Facility One [Member]
Warehouse Facilities [Member]
May 31, 2014
Warehouse Facility Two [Member]
Warehouse Facilities [Member]
Jul. 02, 2014
Warehouse Facility Two [Member]
Warehouse Facilities [Member]
May 31, 2014
Minimum [Member]
Finance And Capital Lease Obligation [Member]
May 31, 2014
Maximum [Member]
Finance And Capital Lease Obligation [Member]
Debt Instrument [Line Items]                    
Maximum borrowing capacity of revolving credit facility     $ 700.0              
Warehouse Facility Additional Limit               300.0    
Revolving credit facility, expiration date     Aug. 01, 2016              
Initial lease terms, in years                 15 years 20 years
Debt maturity, end         Nov. 01, 2020          
Non-recourse notes payable 7,630.0 7,250.0   964.0 6,660.0          
Warehouse facilities maximum borrowing capacity       1,800.0   800.0   1,300.0    
Remaining borrowing capacity       $ 836.0            
Warehouse facility expiration date           Aug. 01, 2014 Feb. 01, 2015