Stockholders' Equity and Stock-Based Compensation Stock Option Activity (Details) - $ / shares				12 Months Ended
	Jan. 25, 2019	Jan. 29, 2018	Feb. 06, 2017	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Summary of stock option activity [Roll Forward]
Options outstanding at the beginning of year (in shares)				3,754,202	3,290,757	2,365,916
Options outstanding at the beginning of year, Weighted-average exercise price per share (in usd per share)				$ 13.07	$ 11.86	$ 11.65
Granted (in shares)				610,953	637,115	956,809
Granted, Weighted-average exercise price per share (in usd per share)				$ 21.00	$ 18.82	$ 12.29
Exercised (in shares)				(380,206)	(153,717)	(27,968)
Exercised, Weighted-average exercise price per share (in usd per share)				$ 9.83	$ 11.49	$ 8.51
Forfeited (in shares)				(6,464)	(19,953)	(4,000)
Forfeited, Weighted-average exercise price per share (in usd per share)				$ 18.11	$ 9.99	$ 13.55
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)				3,978,485	3,754,202	3,290,757	2,365,916
Options outstanding at the end of year, Weighted-average exercise price per share (in usd per share)				$ 14.59	$ 13.07	$ 11.86	$ 11.65
Options outstanding, Weighted-average remaining contractual life (in years)				6 years 6 months	6 years 10 months 24 days	7 years 3 months 18 days	8 years 4 months 24 days
Options exercisable (in shares)				2,685,252
Options exercisable, Weighted-average exercise price per share (in usd per share)				$ 12.70
Options exercisable, Weighted-average remaining contractual life (in years)				5 years 7 months 6 days
Nonqualified Stock Options Under Long Term Incentive Program [Member]
Summary of stock option activity [Roll Forward]
Granted (in shares)	610,953	637,115	956,809