v2.4.0.6
Derivative Instruments And Hedging Activities (Schedule Of Interest Rate Derivatives) (Details) (USD $)
 9 Months Ended
Nov. 30, 2011
Derivative [Line Items]  
Additional reclassification as decrease from AOCL to CAF income $ 12,200,000
New Interest Rate Swaps [Member]
  
Derivative [Line Items]  
Number of instruments 16
Initial term of derivatives, months 46
Notional amount, Interest rate swaps designated as hedges 1,935,000,000
Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
  
Derivative [Line Items]  
Notional amount, Interest rate swaps designated as hedges 957,000,000
Number of instruments 10
Remaining term of derivatives, months 46
Not Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
  
Derivative [Line Items]  
Number of instruments 4
Notional amount, Interest rate swaps not designated as hedges 87,801,000
Not Designated As Hedging Instrument [Member] | Interest Rate Caps [Member]
  
Derivative [Line Items]  
Number of instruments 2 [1]
Initial term of derivatives, months 53
Number of instruments 12 [2]
Number of asset derivatives contributing to offsetting notional amount 6
Number of liability derivatives contributing to offsetting notional amount 6
Initial offsetting notional amount of interest rate derivatives 20,100,000
Offsetting notional amount of interest rate derivatives 887,900,000
Notional amount, Interest rate swaps not designated as hedges $ 0 [1],[2]
Not Designated As Hedging Instrument [Member] | New Interest Rate Cap [Member]
  
Derivative [Line Items]  
Number of asset derivatives contributing to offsetting notional amount 1
Number of liability derivatives contributing to offsetting notional amount 1
Minimum [Member] | Not Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
  
Derivative [Line Items]  
Remaining term of derivatives, months 14
Minimum [Member] | Not Designated As Hedging Instrument [Member] | Interest Rate Caps [Member]
  
Derivative [Line Items]  
Remaining term of derivatives, months 21
Maximum [Member] | Not Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
  
Derivative [Line Items]  
Remaining term of derivatives, months 21
Maximum [Member] | Not Designated As Hedging Instrument [Member] | Interest Rate Caps [Member]
  
Derivative [Line Items]  
Remaining term of derivatives, months 50
[1] Includes one asset derivative and one liability derivative with offsetting initial notional amounts of $20.1 million.
[2] Includes six asset derivatives and six liability derivatives with offsetting notional amounts of $887.9 million.