Goodwill and Intangible Assets - Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Intangible Assets
Total amortization	$ 671	$ 895	$ 1,404	$ 1,812
Service Costs
Intangible Assets
Total amortization	11	21	24	88
Sales and Marketing
Intangible Assets
Total amortization	249	302	534	604
Product Development
Intangible Assets
Total amortization	23	162	69	324
General and Administrative
Intangible Assets
Total amortization	$ 388	$ 410	$ 777	$ 796