Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Balance (in shares) at Dec. 29, 2018		30,868
Balance at Dec. 29, 2018	$ (109,550)	$ 309	$ 0	$ (109,859)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	81,845			81,845
Exercise of common stock options (in shares)		381
Exercise of common stock options	7,190	$ 4	7,186
Stock-based compensation (in shares)		480
Stock-based compensation	16,657	$ 5	16,652
Repurchases of common stock (in shares)		(3,768)
Repurchases of common stock	(155,573)	$ (38)	(23,838)	(131,697)
Balance (in shares) at Dec. 28, 2019		27,961
Balance at Dec. 28, 2019	(159,431)	$ 280	0	(159,711)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	139,189			139,189
Exercise of common stock options (in shares)		420
Exercise of common stock options	9,602	$ 4	9,598
Stock-based compensation (in shares)		620
Stock-based compensation	21,813	$ 6	21,807
Repurchases of common stock (in shares)		(3,611)
Repurchases of common stock	$ (235,151)	$ (36)	(31,405)	(203,710)
Balance (in shares) at Jan. 02, 2021	25,390	25,390
Balance at Jan. 02, 2021	$ (223,978)	$ 254	0	(224,232)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 153,746			153,746
Exercise of common stock options (in shares)	175	174
Exercise of common stock options	$ 4,441	$ 2	4,439
Stock-based compensation (in shares)		369
Stock-based compensation	23,214	$ 4	23,210
Repurchases of common stock (in shares)		(3,250)
Repurchases of common stock	$ (382,376)	$ (33)	(23,678)	(358,665)
Balance (in shares) at Jan. 01, 2022	22,683	22,683
Balance at Jan. 01, 2022	$ (424,953)	$ 227	$ 3,971	$ (429,151)