Summary of Business and Significant Accounting Policies - Revenue Included in Prior Period Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Subscription
Disaggregation of Revenue [Line Items]
Revenue included in prior period deferred revenue	$ 228,216	$ 164,999
Revenue generated from same period billings	52,592	21,897
Revenue	280,808	186,896
Professional Services
Disaggregation of Revenue [Line Items]
Revenue included in prior period deferred revenue	23,790	28,526
Revenue generated from same period billings	31,049	23,221
Revenue	$ 54,839	$ 51,747