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Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 27, 2014
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements Due to their short maturities or their insignificance, the carrying amounts of cash and cash equivalents, accounts and notes receivable, accounts payable, accrued liabilities and short-term borrowings approximated their fair values at December 27, 2014 and December 28, 2013. The Company estimates that, based on current market conditions, the value of its 4.750% 2021 Senior Notes debt was $642.0 million at December 27, 2014 compared with the carrying value of $602.3 million. The higher fair value resulted from changes, since issuance, in the corporate bond market and investor preferences. The fair value of debt is classified as a Level 2 liability and is estimated using quoted market prices as provided in secondary markets that consider the Company's specific credit risk and market related conditions.