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Consolidated Statements of Comprehensive Earnings (Unaudited) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Nov. 30, 2013
Dec. 01, 2012
Nov. 30, 2013
Dec. 01, 2012
Statement of Other Comprehensive Income [Abstract]        
Tax expense (benefit) on marketable securities $ 56 $ 0 $ (95) $ 5
Tax expense (benefit) on foreign currency hedge $ 184 $ 0 $ 264 $ 0