Quarterly report pursuant to Section 13 or 15(d)

Net (Loss) Income Per Share - Anti-Dilutive Securities Excluded from Calculation of Diluted Earnings Per Share (Details)

v3.19.1
Net (Loss) Income Per Share - Anti-Dilutive Securities Excluded from Calculation of Diluted Earnings Per Share (Details) - shares
shares in Thousands
3 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) 9,424 6,706
Performance stock units    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) 13 743
Restricted stock units    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) 329 525
Series A Convertible Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) 2,771 0
Options to purchase common stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares) 6,311 5,438