Summary of Significant Accounting Policies - Schedule of Property and Equipment Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2015
Minimum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	3 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	3 years
Minimum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	3 years
Minimum [Member] | Marketing Assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	3 years
Maximum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	5 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	5 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	5 years
Maximum [Member] | Marketing Assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, Estimated life	5 years