Stockholders' Equity and Stock-Based Compensation Stock Option Activity (Details) - $ / shares				12 Months Ended
	Jan. 29, 2018	Feb. 06, 2017	Feb. 25, 2016	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Summary of stock option activity [Roll Forward]
Options outstanding at the beginning of year (in shares)				3,290,757	2,365,916	850,732
Options outstanding at the beginning of year, Weighted-average exercise price per share (in usd per share)				$ 11.86	$ 11.65	$ 15.38
Granted (in shares)				637,115	956,809	1,547,184
Granted, Weighted-average exercise price per share (in usd per share)				$ 18.82	$ 12.29	$ 9.53
Exercised (in shares)				(153,717)	(27,968)	(28,000)
Exercised, Weighted-average exercise price per share (in usd per share)				$ 11.49	$ 8.51	$ 6.71
Forfeited (in shares)				(19,953)	(4,000)	(4,000)
Forfeited, Weighted-average exercise price per share (in usd per share)				$ 9.99	$ 13.55	$ 16.20
Expired (in shares)				0	0	0
Expired, Weighted average exercise price per share (in usd per share)				$ 0.00	$ 0.00	$ 0.00
Options outstanding at the end of year (in shares)				3,754,202	3,290,757	2,365,916	850,732
Options outstanding at the end of year, Weighted-average exercise price per share (in usd per share)				$ 13.07	$ 11.86	$ 11.65	$ 15.38
Options outstanding, Weighted-average remaining contractual life (in years)				6 years 10 months 17 days	7 years 3 months 18 days	8 years 4 months 24 days	7 years 8 months 12 days
Options exercisable (in shares)				2,162,465
Options exercisable, Weighted-average exercise price per share (in usd per share)				$ 12.30
Options exercisable, Weighted-average remaining contractual life (in years)				5 years 10 months 13 days
Nonqualified Stock Options Under Long Term Incentive Program [Member]
Summary of stock option activity [Roll Forward]
Granted (in shares)	637,115	956,809	1,094,306	452,878