Revenue from Contracts with Customer - Schedule of Revenue Disaggregation by Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues	$ 248,480	$ 202,997	$ 693,416	$ 581,977
SELECT subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	66,648	67,509	199,722	199,848
Enterprise subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	75,381	55,978	214,058	165,268
Term license subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	70,198	49,687	172,024	135,895
Subscriptions
Disaggregation of Revenue [Line Items]
Total revenues	212,227	173,174	585,804	501,011
Perpetual licenses
Disaggregation of Revenue [Line Items]
Total revenues	11,866	12,827	33,373	36,020
Subscriptions and licenses
Disaggregation of Revenue [Line Items]
Total revenues	224,093	186,001	619,177	537,031
Professional services (recurring)
Disaggregation of Revenue [Line Items]
Total revenues	5,160	4,308	16,243	11,624
Professional services (other)
Disaggregation of Revenue [Line Items]
Total revenues	19,227	12,688	57,996	33,322
Services
Disaggregation of Revenue [Line Items]
Total revenues	24,387	16,996	74,239	44,946
Enterprise subscriptions, E365
Disaggregation of Revenue [Line Items]
Total revenues	$ 60,102	$ 29,363	$ 162,120	$ 76,536