Revenue from Contracts with Customer - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 222,986,000		$ 222,986,000		$ 209,314,000
Contract asset impairment			0		0
Contract with customer, liability, revenue recognized			135,237,000	$ 144,391,000
Contract with customer liability additions			152,143,000	118,767,000
Total revenues	$ 222,931,000	$ 184,290,000	$ 444,936,000	$ 378,980,000
Customer Concentration Risk | Revenue Benchmark | Channel Partners
Disaggregation of Revenue [Line Items]
Concentration risk percentage	7.00%	8.00%	8.00%	8.00%
Portfolio Balancing
Disaggregation of Revenue [Line Items]
Deferred revenues	$ 18,429,000		$ 18,429,000		$ 18,166,000
Licenses
Disaggregation of Revenue [Line Items]
Total revenues	87,885,000	$ 74,853,000	183,510,000	$ 160,270,000
Term Licenses
Disaggregation of Revenue [Line Items]
Total revenues	$ 76,494,000	$ 62,474,000	$ 162,003,000	$ 137,077,000