Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Stockholders’ Equity	Noncontrolling Interest
Beginning balance (in shares) at Jan. 27, 2019		65,238,255
Beginning balance at Jan. 27, 2019	$ 682,580	$ 785	$ (346,218)	$ 451,884	$ 579,736	$ (3,607)	$ 682,580	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	12,748				12,748		12,748
Other comprehensive loss	(12)					(12)	(12)
Share-based compensation	11,014			11,014			11,014
Repurchase of common stock (in shares)		(2,211)
Repurchase of common stock	(110)		(110)				(110)
Treasury stock reissued (in shares)		1,408,877
Treasury stock reissued	(10,991)		18,886	(29,877)			(10,991)
Ending balance (in shares) at Apr. 28, 2019		66,644,921
Ending balance at Apr. 28, 2019	$ 695,229	$ 785	(327,442)	433,021	592,484	(3,619)	695,229	0
Beginning balance (in shares) at Jan. 26, 2020	65,758,115	65,758,115
Beginning balance at Jan. 26, 2020	$ 677,200	$ 785	(387,851)	458,579	611,607	(6,166)	676,954	246
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,632				9,635		9,635	(3)
Other comprehensive loss	(1,006)					(1,006)	(1,006)
Share-based compensation	11,081			11,081			11,081
Repurchase of common stock (in shares)		(855,042)
Repurchase of common stock	(30,000)		(30,000)				(30,000)
Treasury stock reissued (in shares)		228,957
Treasury stock reissued	$ (4,876)		3,823	(8,699)			(4,876)
Ending balance (in shares) at Apr. 26, 2020	65,132,030	65,132,030
Ending balance at Apr. 26, 2020	$ 661,717	$ 785	$ (414,028)	$ 460,961	$ 620,928	$ (7,172)	$ 661,474	$ 243