Basis of Presentation and Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 331,383	$ 275,475	$ 1,042,827	$ 871,210
Footwear
Disaggregation of Revenue [Line Items]
Revenue	201,047	168,265	675,270	535,809
Apparel
Disaggregation of Revenue [Line Items]
Revenue	90,380	69,943	268,564	216,097
Equipment
Disaggregation of Revenue [Line Items]
Revenue	$ 39,956	$ 37,267	$ 98,993	$ 119,304

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

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