Stockholders' Equity and Stock-Based Compensation Stock Option Activity (Details) - $ / shares				12 Months Ended
	Jan. 06, 2020	Jan. 25, 2019	Jan. 29, 2018	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Summary of stock option activity [Roll Forward]
Options outstanding at the beginning of year (in shares)				3,978,485	3,754,202	3,290,757
Options outstanding at the beginning of year, Weighted-average exercise price per share (in usd per share)				$ 14.59	$ 13.07	$ 11.86
Granted (in shares)				550,941	610,953	637,115
Granted, Weighted-average exercise price per share (in usd per share)				$ 28.89	$ 21.00	$ 18.82
Exercised (in shares)				(837,911)	(380,206)	(153,717)
Exercised, Weighted-average exercise price per share (in usd per share)				$ 12.01	$ 9.83	$ 11.49
Forfeited (in shares)				0	(6,464)	(19,953)
Forfeited, Weighted-average exercise price per share (in usd per share)				$ 0	$ 18.11	$ 9.99
Expired (in shares)				0	0	0
Expired, Weighted average exercise price per share (in usd per share)				$ 0	$ 0	$ 0
Options outstanding at the end of year (in shares)				3,691,515	3,978,485	3,754,202	3,290,757
Options outstanding at the end of year, Weighted-average exercise price per share (in usd per share)				$ 17.31	$ 14.59	$ 13.07	$ 11.86
Options outstanding, Weighted-average remaining contractual life (in years)				6 years 2 months 12 days	6 years 6 months	6 years 10 months 24 days	7 years 3 months 18 days
Options exercisable (in shares)				2,527,003
Options exercisable, Weighted-average exercise price per share (in usd per share)				$ 14.07
Options exercisable, Weighted-average remaining contractual life (in years)				5 years 3 months 18 days
Nonqualified Stock Options Under Long Term Incentive Program [Member]
Summary of stock option activity [Roll Forward]
Granted (in shares)	550,941	610,953	637,115