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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Thousands
Apr. 21, 2018
Dec. 30, 2017
Accounts and notes receivable, allowances $ 3,669 $ 3,154
Common stock, par value $ 0.01 $ 0.01
Common stock, current par value $ 0.001 $ 0.001
Common stock, authorized shares 500,000,000 500,000,000
Common stock, shares issued 228,729,585 228,729,585
Treasury stock, shares 17,915,898 18,203,381
Series A Preferred Stock    
Preferred stock, par value $ 100 $ 100
Preferred stock, shares authorized 200,000 200,000
Preferred stock, shares issued 0 0
Series B Preferred Stock    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 800,000 800,000
Preferred stock, shares issued 0 0