CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 27, 2018	Oct. 28, 2017	Oct. 27, 2018	Oct. 28, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 27,830	$ 28,776	$ 74,961	$ 111,280
Foreign currency translation (losses) gains, net of tax	(5)	(94)	(127)	2
Comprehensive income	$ 27,825	$ 28,682	$ 74,834	$ 111,282