Summary of Significant Accounting Policies - Summary of Estimated Lives of Assets (Detail)	9 Months Ended
	Sep. 30, 2016
Computer Equipment [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	3 years
Furniture [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	5 years
Minimum [Member] | Machinery and Manufacturing Equipment [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	3 years
Minimum [Member] | Leasehold Improvements [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	3 years
Maximum [Member] | Machinery and Manufacturing Equipment [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	5 years
Maximum [Member] | Leasehold Improvements [Member]
Change In Accounting Estimate [Line Items]
Property, plant and equipment, useful life	10 years