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CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)
Mar. 28, 2015
Dec. 27, 2014
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized (in shares) 20,000,000us-gaap_PreferredStockSharesAuthorized 20,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued (in shares) 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding (in shares) 0us-gaap_PreferredStockSharesOutstanding 0us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized (in shares) 120,000,000us-gaap_CommonStockSharesAuthorized 120,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares) 85,328,000us-gaap_CommonStockSharesIssued 84,503,000us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares) 47,355,000us-gaap_CommonStockSharesOutstanding 47,327,000us-gaap_CommonStockSharesOutstanding
Treasury stock (in shares) 37,973,000us-gaap_TreasuryStockShares 37,176,000us-gaap_TreasuryStockShares