Revenue - Summary of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 541,130	$ 440,221	$ 354,586
Subscription revenue
Disaggregation of Revenue [Line Items]
Revenue	476,023	377,354	290,549
Perpetual license and maintenance revenue
Disaggregation of Revenue [Line Items]
Revenue	50,333	50,594	54,173
Professional services and other revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 14,774	$ 12,273	$ 9,864

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details