Summary of Significant Accounting Policies - Changes in Deferred Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Change In Contract With Customer, Liability [Heading Roll Forward]
Beginning balance	$ 8,130	$ 8,628
Deferred revenue recorded	23,393	18,507
Deferred revenue acquired	1,300	0
Less deferred revenue recognized as revenue	(21,294)	(19,005)
Ending balance	$ 11,529	$ 8,130