Basis of Presentation and Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 441,607	$ 252,440	$ 711,445	$ 595,735
Footwear
Disaggregation of Revenue [Line Items]
Revenue	287,010	152,468	474,224	367,543
Apparel
Disaggregation of Revenue [Line Items]
Revenue	119,748	66,597	178,184	146,154
Equipment
Disaggregation of Revenue [Line Items]
Revenue	$ 34,849	$ 33,375	$ 59,037	$ 82,038

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://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Name:	us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration