Goodwill and Other Intangible Assets - Goodwill Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Balance at beginning of period	$ 32,942	$ 37,681
Effect of change in foreign currency exchange rates	717	(4,739)
Balance at end of period	$ 33,659	$ 32,942