- Carrying Amount of Intangible Assets (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2017	Mar. 31, 2019	Mar. 31, 2018
Finite-lived Intangible Assets [Roll Forward]
Beginning balance		$ 10,518
Amortization expense		(959)	$ (1,097)
Intangible assets acquired in asset acquisition	$ 100	25
Foreign currency translation adjustment		223
Ending balance		$ 9,807