Segment and Related Information - Schedule of Segment Revenues and Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information
Total revenues	$ 504,279	$ 468,685	$ 976,133	$ 924,792
Segment operating income (loss)	61,874	56,757	106,854	112,625
Intercompany
Segment Reporting Information
Total revenues	(6,852)	(5,342)	(11,935)	(10,931)
Intercompany | Enterprise Software
Segment Reporting Information
Total revenues	6,852	5,342	11,935	10,931
Intercompany | Platform Technologies
Segment Reporting Information
Total revenues	0	0	0	0
Operating segments | Enterprise Software
Segment Reporting Information
Total revenues	342,475	315,570	670,820	626,556
Segment operating income (loss)	111,185	102,090	211,165	208,619
Operating segments | Platform Technologies
Segment Reporting Information
Total revenues	161,285	154,847	309,877	305,557
Segment operating income (loss)	38,797	36,301	68,335	67,034
Corporate
Segment Reporting Information
Total revenues	519	(1,732)	(4,564)	(7,321)
Segment operating income (loss)	(60,818)	(53,991)	(118,028)	(107,450)
Operating segment and corporate non-segment
Segment Reporting Information
Segment operating income (loss)	89,164	84,400	161,472	168,203
SaaS
Segment Reporting Information
Total revenues	131,456	109,505	258,051	211,287
SaaS | Enterprise Software
Segment Reporting Information
Total revenues	115,877	97,703	226,919	188,474
SaaS | Platform Technologies
Segment Reporting Information
Total revenues	15,579	11,802	31,132	22,813
SaaS | Corporate
Segment Reporting Information
Total revenues	0	0	0	0
Transaction-based fees
Segment Reporting Information
Total revenues	166,333	146,311	320,203	289,972
Transaction-based fees | Enterprise Software
Segment Reporting Information
Total revenues	38,677	30,991	76,049	60,536
Transaction-based fees | Platform Technologies
Segment Reporting Information
Total revenues	127,656	115,320	244,154	229,436
Transaction-based fees | Corporate
Segment Reporting Information
Total revenues	0	0	0	0
Maintenance
Segment Reporting Information
Total revenues	116,539	116,815	231,670	233,844
Maintenance | Enterprise Software
Segment Reporting Information
Total revenues	109,953	110,760	220,035	221,455
Maintenance | Platform Technologies
Segment Reporting Information
Total revenues	6,586	6,055	11,635	12,389
Maintenance | Corporate
Segment Reporting Information
Total revenues	0	0	0	0
Professional services
Segment Reporting Information
Total revenues	66,420	71,937	127,349	141,952
Professional services | Enterprise Software
Segment Reporting Information
Total revenues	55,256	50,653	106,755	101,820
Professional services | Platform Technologies
Segment Reporting Information
Total revenues	11,164	21,284	20,594	40,132
Professional services | Corporate
Segment Reporting Information
Total revenues	0	0	0	0
Software licenses and royalties
Segment Reporting Information
Total revenues	9,779	15,009	19,909	31,515
Software licenses and royalties | Enterprise Software
Segment Reporting Information
Total revenues	9,479	14,623	17,547	30,728
Software licenses and royalties | Platform Technologies
Segment Reporting Information
Total revenues	300	386	2,362	787
Software licenses and royalties | Corporate
Segment Reporting Information
Total revenues	0	0	0	0
Hardware and other
Segment Reporting Information
Total revenues	13,752	9,108	18,951	16,222
Hardware and other | Enterprise Software
Segment Reporting Information
Total revenues	6,381	5,498	11,580	12,612
Hardware and other | Platform Technologies
Segment Reporting Information
Total revenues	0	0	0	0
Hardware and other | Corporate
Segment Reporting Information
Total revenues	$ 7,371	$ 3,610	$ 7,371	$ 3,610