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Weighted-Average Shares (Details) - shares
3 Months Ended 9 Months Ended
Sep. 27, 2020
Sep. 29, 2019
Sep. 27, 2020
Sep. 29, 2019
Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Anti-dilutive securities excluded from computation of earnings per share (shares) 1,416,000 6,078,000 5,540,000 5,695,000
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Anti-dilutive securities excluded from computation of earnings per share (shares) 3,000   2,000