Segment and Geographic Information - Geographic Data (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 57,128	$ 39,998
Total assets	7,618		$ 8,270
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	25,822	18,132
Total assets	6,491		6,409
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	5,877	4,195
Russia
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	654		1,406
Czech Republic
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets	421		408
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	25,429	$ 17,671
Total assets	$ 52		$ 47