Revenue Recognition - Summary of Revenues Disaggregated by Revenue Source (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Line Items]
Revenue	$ 368,433	$ 271,141	$ 200,882
Subscription Services
Disaggregation Of Revenue [Line Items]
Revenue	327,047	242,651	179,934
Professional Services
Disaggregation Of Revenue [Line Items]
Revenue	26,022	20,410	17,187
Software Licenses and Other
Disaggregation Of Revenue [Line Items]
Revenue	$ 15,364	$ 8,080	$ 3,761