Summary of Significant Accounting Policies - Changes in Carrying Value of Intangible Assets (Parenthetical) (Details)	12 Months Ended
Feb. 02, 2019
Other Intangible Assets
Intangible Assets By Major Class [Line Items]
Intangible assets, estimated useful life	16 years

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

No definition available.

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration