Employee Benefits - Schedule of Projected Benefit Obligation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation present value—beginning of period	$ 3,221	$ 1,445	$ 1,245	$ 1,276
Service cost	524	441	492
Interest cost	37	22	33
Actuarial losses (gains)	1,335	(128)	(512)
Change in consolidation scope	19	0	119
Currency translation adjustment	(139)	(135)	(163)
Projected benefit obligation present value—end of period	$ 3,221	$ 1,445	$ 1,245