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Summary of Significant Accounting Policies-Cash Flow Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Cash paid during the year for:        
Interest (net of amounts capitalized) $ 211 $ 193 $ 551  
Income taxes 42,270 36,589 91,061  
Operating lease liabilities 6,676 0 0  
Non-cash investing activities:        
ROU assets obtained in exchange for lease liabilities(1) 26,484 0 0  
Unpaid purchases of property, plant and equipment 6,686 2,391 1,559  
Unsettled common stock proceeds from option exercises 14 4 161  
Unsettled common stock repurchases 0 0 1,988  
Cash and cash equivalents 567,687 552,490 315,302  
Restricted cash 388 151 181  
Total cash, cash equivalents and restricted cash shown in the statement of cash flows $ 568,075 $ 552,641 $ 315,483 $ 308,198