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(Calaulation of Stock Repurchase Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Nov. 29, 2014
Nov. 30, 2013
Dec. 01, 2012
Earnings Per Share and Stock Repurchase Activity [Abstract]      
Number of antidilutive options with exercise prices greater than the average market price excluded from the computation of dilutive earnings per share 441,033us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 125,135us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 508,167us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Common stock repurchased and retired pursuant to the Company's stock repurchase program $ 32,822us-gaap_StockRepurchasedAndRetiredDuringPeriodValue $ 27,708us-gaap_StockRepurchasedAndRetiredDuringPeriodValue $ 37,320us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Number of shares repurchased and retired pursuant to the Company's stock repurchase program 535,703us-gaap_StockRepurchasedAndRetiredDuringPeriodShares 534,100us-gaap_StockRepurchasedAndRetiredDuringPeriodShares 792,881us-gaap_StockRepurchasedAndRetiredDuringPeriodShares