Summary of Significant Accounting Policies - Schedule of Estimated Useful Life of Property and Equipment (Detail)	12 Months Ended
	Jan. 03, 2016
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	Shorter of estimated useful life or term of lease
Furniture, and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Furniture, and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	10 years
Internal-use software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	3 years
Internal-use software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years