v3.19.2
Stockholders’ Equity - Shares Reserved for Issuance (Details) - shares
Jun. 29, 2019
Dec. 29, 2018
Employee Stock Option    
Class of Stock [Line Items]    
Options issued and outstanding (shares) 3,189,000 3,524,000
Common stock available for stock-based award grants under incentive award plans (shares) 14,195,000  
Restricted stock units    
Class of Stock [Line Items]    
Restricted stock units issued and outstanding (shares) 2,412,000 2,123,000
2014 Plan    
Class of Stock [Line Items]    
Common stock available for stock-based award grants under incentive award plans (shares) 3,411,000  
Common Stock    
Class of Stock [Line Items]    
Common stock available for conversion of Series A Redeemable Convertible Preferred Stock (shares) 5,183,000