Depreciation of Property and Equipment Using Straight-Line Method Based on Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2015
Significant Accounting Policies [Line Items]
Property Plant And Equipment Estimated Useful Lives	Term of the lease or the estimated life of the related improvements, whichever is shorter.
Furniture and Fixtures [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Office Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Office Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Machinery and Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Machinery and Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Computer Software [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Automobiles and Trucks [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Websites [Member]
Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years