CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Exchangeable Stock	Special Voting Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Feb. 03, 2019		9,332	9,332	121,600
Beginning balance at Feb. 03, 2019	$ 1,445,975		$ 0	$ 608	$ 315,285	$ 1,346,890	$ (216,808)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	221,593					221,593
Foreign currency translation adjustment	(11,209)						(11,209)
Common stock issued upon exchange of exchangeable shares (in shares)		(1,951)	(1,951)	1,951
Common stock issued upon exchange of exchangeable shares				$ 10	(10)
Stock-based compensation expense	22,005				22,005
Common stock issued upon settlement of stock-based compensation (in shares)				497
Common stock issued upon settlement of stock-based compensation	13,514			$ 3	13,511
Shares withheld related to net share settlement of stock-based compensation (in shares)				(117)
Shares withheld related to net share settlement of stock-based compensation	$ (19,400)			$ (1)	(19,399)
Repurchase of common stock (in shares)	(1,000)			(1,010)
Repurchase of common stock	$ (165,099)			$ (5)	(1,477)	(163,617)
Ending balance (in shares) at Aug. 04, 2019		7,381	7,381	122,921
Ending balance at Aug. 04, 2019	1,507,379		$ 0	$ 615	329,915	1,404,866	(228,017)
Beginning balance (in shares) at May. 05, 2019		7,381	7,381	122,900
Beginning balance at May. 05, 2019	1,366,720		$ 0	$ 615	317,204	1,281,432	(232,531)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	124,990					124,990
Foreign currency translation adjustment	4,514						4,514
Stock-based compensation expense	11,848				11,848
Common stock issued upon settlement of stock-based compensation (in shares)				33
Common stock issued upon settlement of stock-based compensation	1,337				1,336
Shares withheld related to net share settlement of stock-based compensation (in shares)				(2)
Shares withheld related to net share settlement of stock-based compensation	(461)				(461)
Repurchase of common stock (in shares)				(10)
Repurchase of common stock	(1,569)				(12)	(1,556)
Ending balance (in shares) at Aug. 04, 2019		7,381	7,381	122,921
Ending balance at Aug. 04, 2019	1,507,379		$ 0	$ 615	329,915	1,404,866	(228,017)
Beginning balance (in shares) at Feb. 02, 2020		6,227	6,227	124,122
Beginning balance at Feb. 02, 2020	1,952,218		$ 0	$ 621	355,541	1,820,637	(224,581)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	115,433					115,433
Foreign currency translation adjustment	(6,304)						(6,304)
Common stock issued upon exchange of exchangeable shares (in shares)		(834)	(834)	834
Common stock issued upon exchange of exchangeable shares				$ 4	(4)
Stock-based compensation expense	21,912				21,912
Common stock issued upon settlement of stock-based compensation (in shares)				485
Common stock issued upon settlement of stock-based compensation	12,463			$ 2	12,461
Shares withheld related to net share settlement of stock-based compensation (in shares)				(155)
Shares withheld related to net share settlement of stock-based compensation	$ (30,957)			$ 0	(30,957)
Repurchase of common stock (in shares)	(400)			(369)
Repurchase of common stock	$ (63,663)			$ (2)	(539)	(63,122)
Ending balance (in shares) at Aug. 02, 2020		5,393	5,393	124,917
Ending balance at Aug. 02, 2020	2,001,102		$ 0	$ 625	358,414	1,872,948	(230,885)
Beginning balance (in shares) at May. 03, 2020		5,482	5,482	124,717
Beginning balance at May. 03, 2020	1,835,787		$ 0	$ 624	334,201	1,786,147	(285,185)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	86,801					86,801
Foreign currency translation adjustment	54,300						54,300
Common stock issued upon exchange of exchangeable shares (in shares)		(89)	(89)	89
Stock-based compensation expense	15,784				15,784
Common stock issued upon settlement of stock-based compensation (in shares)				114
Common stock issued upon settlement of stock-based compensation	9,328			$ 0	9,328
Shares withheld related to net share settlement of stock-based compensation (in shares)				(3)
Shares withheld related to net share settlement of stock-based compensation	(898)				(899)
Ending balance (in shares) at Aug. 02, 2020		5,393	5,393	124,917
Ending balance at Aug. 02, 2020	$ 2,001,102		$ 0	$ 625	$ 358,414	$ 1,872,948	$ (230,885)