Description of the Business and Summary of Significant Accounting Policies and Practices - Advertising and Marketing Costs (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Advertising and marketing expense	$ 56.8	$ 36.3	$ 37.1
Difference between Revenue Guidance in Effect before and after Topic 606 \| Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Advertising and marketing expense	$ 9.6

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227

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