Revenue Revenue - Disaggregated Net revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
May 04, 2018	Apr. 28, 2017
Disaggregation of Revenue [Line Items]
Net revenue	$ 299,825	$ 268,365
United States
Disaggregation of Revenue [Line Items]
Net revenue	256,168	232,325
Europe
Disaggregation of Revenue [Line Items]
Net revenue	31,167	25,397
Asia
Disaggregation of Revenue [Line Items]
Net revenue	$ 12,490	$ 10,643

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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