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Shareholders' Equity - Repurchase of Common Stock (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Repurchase Of Common Stock [Abstract]      
Amount repurchased under Board-approved share repurchase program $ 279,101 $ 150,000 $ 125,000
Amount repurchased in connection with the vesting of employee restricted stock grants 3,344 5,245 1,693
Total amount repurchased 282,445 $ 155,245 $ 126,693
Remaining authorization stock purchase plan $ 186,000