v2.4.0.6
Derivative Instruments And Hedging Activities (Schedule Of Effect Of Derivative Instruments On The Consolidated Statements Of Earnings) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Nov. 30, 2011
Nov. 30, 2010
Derivative [Line Items]        
Loss recognized in AOCL $ (9,209) $ (4,579) $ (18,914) $ (10,917)
Designated As Hedging Instrument [Member] | Interest Rate Swaps [Member]
       
Derivative [Line Items]        
Loss recognized in AOCL 1,244 [1] 2,571 [1] 18,362 [1] 11,059 [1]
Loss reclassified from AOCL into CAF Income 2,258 [1] 750 [1] 4,353 [1] 1,049 [1]
Loss recognized in CAF Income 0 [2] 0 [2] 0 [2] 4 [2]
Not Designated As Hedging Instrument [Member] | CarMax Auto Finance Income [Member]
       
Derivative [Line Items]        
Gain (loss) on interest rate swaps 291 1,621 1,387 2,941
Net periodic settlements and accrued interest (299) (1,658) (1,470) (7,120)
Total $ (8) $ (37) $ (83) $ (4,179)
[1] Represents the effective portion.
[2] Represents the ineffective portion and amount excluded from effectiveness testing.