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Basis of Presentation and General Information (Reconciliation Of Basic And Diluted Weighted Average Shares)(Details)
 12 Months Ended
Dec. 27, 2013
Dec. 28, 2012
Dec. 30, 2011
Basis Of Presentation And General Information [Abstract]      
Basic weighted average common shares outstanding 30,283,298 31,703,544 39,895,422
Unvested restricted stock units and common stock subject to vesting requirements issued to employees 1,809,565 1,765,351 1,919,151
Common stock issuable upon the exercise of stock options 22,802 41,817 60,821
Dilutive weighted average common shares outstanding 32,115,665 33,510,712 41,875,394