Goodwill, In-Process Research and Development and Intellectual Property - Summary of Gross Intellectual Property, Accumulated Amortization, and Net Intellectual Property (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2009
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 53,500	$ 53,500
Accumulated Amortization	(10,241)	(4,931)
Foreign currency translation impact	(437)	(1,671)
Write-off	(1,562)
Net Carrying Amount	41,260	46,898
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	5,000	5,000	$ 5,000
Accumulated Amortization	(3,438)	(3,259)
Write-off	(1,562)
Net Carrying Amount		1,741
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	48,500	48,500
Accumulated Amortization	(6,803)	(1,672)
Foreign currency translation impact	(437)	(1,671)
Net Carrying Amount	$ 41,260	$ 45,157