Long-Term Debt (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Nov. 30, 2012	Nov. 30, 2012 Amendments
Long Term Debt (Textual) [Abstract]
Credit Agreement Amendment		5
Nonrecourse notes issued	82.2	82.2
Interest rate during period		4.10%
Partial redemption of the senior unsecured notes in denominations		10.0
Partial redemption of the senior unsecured notes in multiples		1.0
Term Loan [Member]
Long Term Debt (Textual) [Abstract]
Total Credit Agreement debt	40.5	40.5
Revolver [Member]
Long Term Debt (Textual) [Abstract]
Repayment of outstanding loan		157.3
Debt Instrument, Maturity Date		Nov. 02, 2012
Letter of Credit [Member]
Long Term Debt (Textual) [Abstract]
Total Credit Agreement debt	0	0
Senior Unsecured notes [Member]
Long Term Debt (Textual) [Abstract]
Debt Instrument, Maturity Date		Feb. 01, 2015
Credit Agreement Amendment		4
Interest on Notes paid in kind and compounds quarterly at a rate	22.95%
Interest on Notes During continuance of event of default rate		24.95%