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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Apr. 04, 2015
Jan. 03, 2015
Statement of Financial Position [Abstract]    
Accounts receivable, allowance $ 1,757us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 1,778us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Common stock, par value (in dollars per share) $ 0.8333us-gaap_CommonStockParOrStatedValuePerShare $ 0.8333us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized 110,000,000us-gaap_CommonStockSharesAuthorized 110,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares outstanding 70,587,344us-gaap_CommonStockSharesOutstanding 70,406,086us-gaap_CommonStockSharesOutstanding
Preferred stock, par value (in dollars per share) $ 1us-gaap_PreferredStockParOrStatedValuePerShare $ 1us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, shares authorized 5,000,000us-gaap_PreferredStockSharesAuthorized 5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares outstanding 0us-gaap_PreferredStockSharesOutstanding 0us-gaap_PreferredStockSharesOutstanding