Goodwill and Intangible Assets, Net, Carrying Amount of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill
Balance at the beginning of the period			$ 131,879
Foreign exchange			456
Balance at the end of the period	$ 132,335	$ 132,312	132,335	$ 132,312
Intangible Assets
Balance at the beginning of the period			25,071
Amortization	(1,600)	(1,300)	(3,013)	(2,700)
Foreign exchange			81
Balance at the end of the period	$ 22,139	$ 22,991	$ 22,139	$ 22,991