Debt (Narrative) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
|
May. 31, 2015 |
May. 31, 2014 |
Feb. 28, 2015 |
| Debt Instrument [Line Items] |
|
|
|
| Non-Recourse Debt |
$ 8,860,000
|
|
$ 8,470,000
|
| Capitalized interest |
2,800
|
$ 0
|
|
| Long-term debt, excluding current portion |
300,000
|
|
$ 300,000
|
| Revolving Credit Facility [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Maximum borrowing capacity of revolving credit facility |
$ 1,000,000
|
|
|
| Revolving credit facility, expiration date |
Aug. 01, 2016
|
|
|
| Revolving Credit Facility, Remaining Borrowing Capacity |
$ 999,200
|
|
|
| Warehouse Facilities [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Non-Recourse Debt |
1,090,000
|
|
|
| Warehouse facilities maximum borrowing capacity |
2,300,000
|
|
|
| Remaining borrowing capacity |
1,210,000
|
|
|
| Term Securitizations Debt [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Non-Recourse Debt |
$ 7,770,000
|
|
|
| Debt maturity, end |
Nov. 01, 2021
|
|
|
| Long-term Debt [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Term Loan expiraton date |
Nov. 01, 2017
|
|
|
| Warehouse Facility One [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Warehouse facilities maximum borrowing capacity |
$ 800,000
|
|
|
| Warehouse facility expiration date |
Jul. 01, 2015
|
|
|
| Warehouse Facility Two [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Warehouse facilities maximum borrowing capacity |
$ 1,500,000
|
|
|
| Warehouse facility expiration date |
Feb. 01, 2016
|
|
|
| Minimum [Member] | Finance And Capital Lease Obligation [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Initial lease terms, in years |
15 years
|
|
|
| Maximum [Member] | Finance And Capital Lease Obligation [Member] |
|
|
|
| Debt Instrument [Line Items] |
|
|
|
| Initial lease terms, in years |
20 years
|
|
|