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Consolidated Condensed Balance Sheets (Parenthetical) - $ / shares
Sep. 27, 2021
Dec. 28, 2020
Statement Of Financial Position [Abstract]    
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 300,000,000 300,000,000
Common stock, shares issued 108,165,000 106,770,000
Common stock, shares outstanding 105,692,000 106,770,000
Treasury stock, common shares 2,473,000