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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 28, 2019
Dec. 29, 2018
Statement of Financial Position [Abstract]    
Accounts receivable, allowance for doubtful accounts $ 1,803 $ 1,535
Preferred stock, par value (in USD per share) $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value (in USD per share) $ 0.001 $ 0.001
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 53,696,000 53,085,000
Treasury stock, shares 15,530,000 15,255,000