Goodwill and Intangible Assets - Changes to Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 2,910	$ 2,910
Translation adjustment	(178)	(43)
Accumulated amortization	(1,134)	(685)
Balance	1,598	2,182
Trademark [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	300	300
Translation adjustment	(19)	(5)
Accumulated amortization	(215)	(127)
Balance	66	168
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,370	1,370
Translation adjustment	(83)	(20)
Accumulated amortization	(538)	(333)
Balance	749	1,017
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,240	1,240
Translation adjustment	(76)	(18)
Accumulated amortization	(381)	(225)
Balance	$ 783	$ 997