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Share-based Compensation (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2020
Sep. 24, 2019
Sep. 29, 2020
Sep. 24, 2019
Share-based Compensation        
Share-based compensation expense $ 7,580 $ 8,143 $ 22,070 $ 25,016
Labor expense        
Share-based Compensation        
Share-based compensation expense 2,480 2,164 7,400 6,513
General and administrative expense        
Share-based Compensation        
Share-based compensation expense $ 5,100 $ 5,979 $ 14,670 $ 18,503