Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 30, 2015	Dec. 29, 2014
Stockholders' equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000us-gaap_CommonStockSharesAuthorized	100,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued (in shares)	38,415,925us-gaap_CommonStockSharesIssued	38,410,196us-gaap_CommonStockSharesIssued
Common stock, shares outstanding (in shares)	38,415,925us-gaap_CommonStockSharesOutstanding	38,410,196us-gaap_CommonStockSharesOutstanding
Treasury stock, shares (in shares)	59,886us-gaap_TreasuryStockShares	59,886us-gaap_TreasuryStockShares

Face amount or stated value per share of common stock.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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