DISAGGREGATION OF REVENUE (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue
Total revenues	$ 1,850,204	$ 1,592,287	$ 1,116,663
Intercompany
Disaggregation of Revenue
Total revenues	(21,636)	(22,033)	(19,131)
Corporate
Disaggregation of Revenue
Total revenues	(15,814)	(19,006)	(19,120)
Corporate and Elimination
Disaggregation of Revenue
Total revenues	(15,814)	(19,006)	(19,120)
Enterprise Software \| Intercompany
Disaggregation of Revenue
Total revenues	21,636	22,033	19,131
Enterprise Software \| Operating segments
Disaggregation of Revenue
Total revenues	1,278,822	1,165,576	1,058,669
Platform Technologies \| Intercompany
Disaggregation of Revenue
Total revenues	0	0	0
Platform Technologies \| Operating segments
Disaggregation of Revenue
Total revenues	587,196	445,717	77,114
Recurring revenues
Disaggregation of Revenue
Total revenues	1,480,759	1,258,722	818,161
Recurring revenues \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Recurring revenues \| Enterprise Software
Disaggregation of Revenue
Total revenues	970,466	864,667	767,655
Recurring revenues \| Platform Technologies
Disaggregation of Revenue
Total revenues	510,293	394,055	50,506
Non-recurring revenues
Disaggregation of Revenue
Total revenues	369,445	333,565	298,502
Non-recurring revenues \| Corporate
Disaggregation of Revenue
Total revenues	5,822	3,027	11
Non-recurring revenues \| Enterprise Software
Disaggregation of Revenue
Total revenues	286,720	278,876	271,883
Non-recurring revenues \| Platform Technologies
Disaggregation of Revenue
Total revenues	76,903	51,662	26,608
Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	82,716	84,781	79,831
Products and services transferred over time
Disaggregation of Revenue
Total revenues	1,767,488	1,507,506	1,036,832
Subscriptions
Disaggregation of Revenue
Total revenues	1,012,304	784,435	350,648
Subscriptions \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Subscriptions \| Enterprise Software
Disaggregation of Revenue
Total revenues	526,323	425,078	339,842
Subscriptions \| Platform Technologies
Disaggregation of Revenue
Total revenues	485,981	359,357	10,806
Subscriptions \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	0	0	0
Subscriptions \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	1,012,304	784,435	350,648
Maintenance
Disaggregation of Revenue
Total revenues	468,455	474,287	467,513
Maintenance \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Maintenance \| Enterprise Software
Disaggregation of Revenue
Total revenues	444,143	439,589	427,813
Maintenance \| Platform Technologies
Disaggregation of Revenue
Total revenues	24,312	34,698	39,700
Maintenance \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	0	0	0
Maintenance \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	468,455	474,287	467,513
Professional services
Disaggregation of Revenue
Total revenues	243,117	209,391	186,409
Professional services \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Professional services \| Enterprise Software
Disaggregation of Revenue
Total revenues	170,462	165,396	165,022
Professional services \| Platform Technologies
Disaggregation of Revenue
Total revenues	72,655	43,995	21,387
Professional services \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	0	0	0
Professional services \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	243,117	209,391	186,409
Software licenses and royalties
Disaggregation of Revenue
Total revenues	59,406	74,452	73,164
Software licenses and royalties \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Software licenses and royalties \| Enterprise Software
Disaggregation of Revenue
Total revenues	55,158	66,816	67,979
Software licenses and royalties \| Platform Technologies
Disaggregation of Revenue
Total revenues	4,248	7,636	5,185
Software licenses and royalties \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	50,302	62,847	62,029
Software licenses and royalties \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	9,104	11,605	11,135
Appraisal services
Disaggregation of Revenue
Total revenues	34,508	27,788	21,127
Appraisal services \| Corporate
Disaggregation of Revenue
Total revenues	0	0	0
Appraisal services \| Enterprise Software
Disaggregation of Revenue
Total revenues	34,508	27,788	21,127
Appraisal services \| Platform Technologies
Disaggregation of Revenue
Total revenues	0	0	0
Appraisal services \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	0	0	0
Appraisal services \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	34,508	27,788	21,127
Hardware and other
Disaggregation of Revenue
Total revenues	32,414	21,934	17,802
Hardware and other \| Products and services transferred at a point in time
Disaggregation of Revenue
Total revenues	32,414	21,934	17,802
Hardware and other \| Products and services transferred over time
Disaggregation of Revenue
Total revenues	$ 0	$ 0	$ 0