CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 28, 2018	Oct. 29, 2017	Jul. 30, 2017	Apr. 30, 2017	Jan. 29, 2017	Oct. 30, 2016	Jul. 31, 2016	May 01, 2016	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Income Statement [Abstract]
Net revenue	$ 928,802	$ 619,018	$ 581,054	$ 520,307	$ 789,940	$ 544,416	$ 514,520	$ 495,516	$ 2,649,181	$ 2,344,392	$ 2,060,523
Cost of goods sold	406,291	297,056	283,632	263,412	362,041	265,990	260,359	256,385	1,250,391	1,144,775	1,063,357
Gross profit	522,511	321,962	297,422	256,895	427,899	278,426	254,161	239,131	1,398,790	1,199,617	997,166
Selling, general and administrative expenses	264,232	215,367	225,524	199,141	231,270	185,451	180,202	181,542	904,264	778,465	628,090
Asset impairment and restructuring costs	2,001	21,007	3,186	12,331	0	0	0	0	38,525	0	0
Income from operations	256,278	85,588	68,712	45,423	196,629	92,975	73,959	57,589	456,001	421,152	369,076
Other income (expense), net	1,226	1,052	812	907	857	628	578	(486)	3,997	1,577	(581)
Income before income tax expense	257,504	86,640	69,524	46,330	197,486	93,603	74,537	57,103	459,998	422,729	368,495
Income tax expense	137,743	27,696	20,813	15,084	61,351	25,318	20,912	11,767	201,336	119,348	102,448
Net income	119,761	58,944	48,711	31,246	136,135	68,285	53,625	45,336	258,662	303,381	266,047
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	48,516	(31,018)	72,854	(31,775)	15,941	(24,748)	(28,052)	73,562	58,577	36,703	(64,796)
Comprehensive income	$ 168,277	$ 27,926	$ 121,565	$ (529)	$ 152,076	$ 43,537	$ 25,573	$ 118,898	$ 317,239	$ 340,084	$ 201,251
Basic earnings per share (in dollars per share)	$ 0.88	$ 0.44	$ 0.36	$ 0.23	$ 0.99	$ 0.50	$ 0.39	$ 0.33	$ 1.90	$ 2.21	$ 1.90
Diluted earnings per share (in dollars per share)	$ 0.88	$ 0.43	$ 0.36	$ 0.23	$ 0.99	$ 0.50	$ 0.39	$ 0.33	$ 1.90	$ 2.21	$ 1.89
Basic weighted-average number of shares outstanding (in shares)									135,988	137,086	140,365
Diluted weighted-average number of shares outstanding (in shares)									136,198	137,302	140,610