Intangible Assets, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Finite lived intangible assets:
Accumulated amortization	$ (65,048)	$ (57,420)
Total finite lived intangible assets	52,893	36,470
Foreign currency translation adjustment	(2,549)	(2,271)
Total	59,075	42,930
Customer relationship intangibles
Finite lived intangible assets:
Intangible assets, finite	115,574	91,523
Other intangibles, primarily trade name
Finite lived intangible assets:
Intangible assets, finite	2,367	2,367
Trade Names
Intangible Assets
Indefinite lived intangible assets — Trade name	$ 8,731	$ 8,731