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Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 29, 2012
Feb. 28, 2011
Feb. 28, 2010
Net income $ 110,374 $ 93,305 $ 71,817
Auction rate security activity, net of tax      
Changes in fair market value 945 371 563
Settlement gains reclassified to income (61) (23) (28)
Subtotal 884 348 535
Total other comprehensive income 2,261 724 1,720
Comprehensive income 112,635 94,029 73,537
Foreign currency contracts
     
Cash flow hedge activity, net of tax      
Changes in fair market value 375 (1,073) 7
Ineffectiveness recorded in income 44 11 (12)
Settlements reclassified to income 166 (144) (30)
Subtotal 585 (1,206) (35)
Interest rate swaps
     
Cash flow hedge activity, net of tax      
Changes in fair market value (1,923) (2,376) (3,075)
Settlements reclassified to income 2,715 3,958 4,295
Subtotal $ 792 $ 1,582 $ 1,220