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Employee Benefit Plans and Stock-based Compensation - Summary of Stock Awards Valuation Assumptions (Details) - Employee Stock Purchase Plan - $ / shares
6 Months Ended
Jul. 01, 2020
Jul. 01, 2019
Purchase Period July 1, 2019    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (years)   6 months
Volatility   43.00%
Risk-free interest rate   2.50%
Expected dividends   0.00%
Estimated weighted average fair value per share at purchase date   $ 1.31
Forecast [Member] | Purchase Period July 1 2020 [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected term (years) 6 months  
Volatility 50.00%  
Risk-free interest rate 1.60%  
Expected dividends 0.00%  
Estimated weighted average fair value per share at purchase date $ 2.26