Goodwill, In-Process Research and Development and Intangible Assets - Carrying Value of Company's IPR&D Assets and Change in Balance (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Beginning balance	$ 16,511
Foreign currency translation impact	259	$ (1,671)
Ending balance	17,191	16,511
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning balance	16,511
Foreign currency translation impact	680
Ending balance	$ 17,191	$ 16,511