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Stockholders' Equity - Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity (Details)
shares in Thousands
6 Months Ended
Jul. 03, 2020
shares
Restricted Stock  
Schedule Of Restricted Stock And Restricted Stock Units [Line Items]  
Unvested at January 3, 2020 11
Vested (11)
Restricted Stock Units (RSUs)  
Schedule Of Restricted Stock And Restricted Stock Units [Line Items]  
Unvested at January 3, 2020 104
Granted 97
Vested (89)
Forfeited or expired (1)
Unvested at July 3, 2020 111