Derivative Instruments And Hedging Activities (Narrative) (Details) (USD $)	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
Designated As Hedging Instrument [Member]
Derivative [Line Items]
Additional reclassification as decrease from AOCL to CAF income	$ 9,300,000
Offsetting notional amount of interest rate derivatives		615,500,000
Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
Derivative [Line Items]
Derivative notional amount	869,000,000	750,000,000
Not Designated As Hedging Instrument [Member]
Derivative [Line Items]
Derivative notional amount	$ 0