Segment Information - Net Revenue by Location (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Segment Reporting Information
Net revenue	$ 628,624	$ 398,539	$ 1,148,626	$ 658,790
Product sales
Segment Reporting Information
Net revenue	606,691	386,392	1,105,168	633,709
Product sales | U.S.
Segment Reporting Information
Net revenue	180,265	97,202	337,331	166,667
Product sales | Italy
Segment Reporting Information
Net revenue	64,803	36,671	112,356	56,023
Product sales | Germany
Segment Reporting Information
Net revenue	52,204	33,376	86,882	44,738
Product sales | Canada
Segment Reporting Information
Net revenue	34,425	24,174	61,065	40,851
Product sales | Spain
Segment Reporting Information
Net revenue	31,737	20,381	57,244	33,377
Product sales | South Korea
Segment Reporting Information
Net revenue	26,802	29,092	54,611	50,316
Product sales | Other foreign countries
Segment Reporting Information
Net revenue	216,455	145,496	395,679	241,737
Net royalties
Segment Reporting Information
Net revenue	$ 21,933	$ 12,147	$ 43,458	$ 25,081