Goodwill, In-Process Research and Development and Intangible Assets - Carrying Value of Company's IPR&D Assets and Change in Balance (Detail) - In-Process Research and Development [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)
Finite-Lived Intangible Assets [Line Items]
Additions	$ 22,300
Foreign currency translation impact	(103)
Ending balance	$ 22,197