Goodwill - Schedule of Goodwill Activity (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 22,208
Additions	0
Net foreign currency translation	(936)
Ending balance	21,272
June 30, 2015 balance at cost	22,114
Accumulated amortization	(842)
Ending balance	$ 21,272