Summary of Significant Accounting Policies -Fixtures, Equipment and Improvements (Details)	12 Months Ended
Jan. 30, 2016
Fixtures and equipment
Property, Plant and Equipment
Useful life	10 years
Leasehold improvements
Property, Plant and Equipment
Useful life	Lesser of useful lives or lease term
Computer equipment
Property, Plant and Equipment
Useful life	5 years
Software
Property, Plant and Equipment
Useful life	3 years

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

No definition available.

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