Segment Information - Net Revenue by Location (Details) - USD ($) $ in Thousands	3 Months Ended
May 04, 2019	May 05, 2018
Segment Reporting Information
Net revenue	$ 536,691	$ 521,289
Product sales
Segment Reporting Information
Net revenue	517,873	501,505
Product sales \| U.S.
Segment Reporting Information
Net revenue	164,371	153,310
Product sales \| Italy
Segment Reporting Information
Net revenue	50,435	57,671
Product sales \| Canada
Segment Reporting Information
Net revenue	38,581	39,520
Product sales \| South Korea
Segment Reporting Information
Net revenue	33,917	37,632
Product sales \| Other foreign countries
Segment Reporting Information
Net revenue	230,569	213,372
Net royalties
Segment Reporting Information
Net revenue	$ 18,818	$ 19,784

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration