Revenue from Contracts with Customers - Deferred Contract Acquisition Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in Deferred Contract Acquisition Costs [Roll Forward]
Balance at beginning of the year	$ 18,273	$ 11,610	$ 6,069
Add: Contract costs capitalized during the year	24,218	14,344	9,579
Less: Amortization of contract costs during the year	(12,844)	(7,681)	(4,038)
Balance at end of the year	$ 29,647	$ 18,273	$ 11,610