Goodwill and Intangible Assets - Narrative (Details)	12 Months Ended
Jan. 28, 2018
Goodwill and Intangible Assets [Line Items]
Number of reporting units	3

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

No definition available.

Name:	us-gaap_NumberOfReportingUnits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration