Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement [Line Items]
Total revenue	$ 1,906,715	$ 1,681,297	$ 1,515,892
Lease licenses
Statement [Line Items]
Total revenue	617,643	500,105	406,043
Perpetual licenses
Statement [Line Items]
Total revenue	328,154	280,745	293,587
Software licenses
Statement [Line Items]
Total revenue	945,797	780,850	699,630
Maintenance
Statement [Line Items]
Total revenue	896,037	840,597	760,574
Service
Statement [Line Items]
Total revenue	64,881	59,850	55,688
Maintenance and service
Statement [Line Items]
Total revenue	$ 960,918	$ 900,447	$ 816,262
Direct revenue, as a percentage of total revenue | Revenue Benchmark | Sales Channel Concentration Risk
Statement [Line Items]
Concentration risk, percentage	76.30%	77.80%	77.10%
Indirect revenue, as a percentage of total revenue | Revenue Benchmark | Sales Channel Concentration Risk
Statement [Line Items]
Concentration risk, percentage	23.70%	22.20%	22.90%