Goodwill and Intangible Assets, Net, Carrying Amount of Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Goodwill
Balance at the beginning of the period			$ 131,879
Foreign exchange			1,855
Balance at the end of the period	$ 133,734	$ 131,191	133,734	$ 131,191
Intangible Assets
Balance at the beginning of the period			25,071
Amortization	(1,700)	(1,400)	(4,538)	(4,100)
Foreign exchange			431
Balance at the end of the period	$ 20,964	$ 21,816	$ 20,964	$ 21,816