Net (Loss) Income per Common Share - Anti-dilutive Securities Excluded from the Computation (Details) - shares shares in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted income (loss) per common share (in shares)	7,206	6,477
Performance-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted income (loss) per common share (in shares)	838	750
Time-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted income (loss) per common share (in shares)	485	557