Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Total revenues	$ 1,850,204	$ 1,592,287	$ 1,116,663
Cost of revenues:
Total cost of revenues	1,066,341	882,643	574,151
Gross profit	783,863	709,644	542,512
Sales and marketing expense	135,743	118,624	98,466
General and administrative expense	267,324	271,955	161,095
Research and development expense	105,184	93,481	88,363
Amortization of other intangibles	61,363	44,849	21,662
Operating income	214,249	180,735	172,926
Interest expense	(28,379)	(23,298)	(1,013)
Other income, net	1,723	1,544	3,129
Income before income taxes	187,593	158,981	175,042
Income tax provision (benefit)	23,353	(2,477)	(19,778)
Net income	$ 164,240	$ 161,458	$ 194,820
Earnings per common share:
Basic (in dollars per share)	$ 3.95	$ 3.95	$ 4.87
Diluted (in dollars per share)	$ 3.87	$ 3.82	$ 4.69
Subscriptions
Revenues:
Total revenues	$ 1,012,304	$ 784,435	$ 350,648
Maintenance
Revenues:
Total revenues	468,455	474,287	467,513
Professional services
Revenues:
Total revenues	243,117	209,391	186,409
Subscriptions, maintenance and professional services
Cost of revenues:
Total cost of revenues	953,897	799,158	510,504
Software licenses and royalties
Revenues:
Total revenues	59,406	74,452	73,164
Cost of revenues:
Total cost of revenues	6,083	3,552	3,339
Amortization of software development
Cost of revenues:
Total cost of revenues	6,507	2,325	0
Amortization of acquired software
Cost of revenues:
Total cost of revenues	52,192	45,601	31,962
Appraisal services
Revenues:
Total revenues	34,508	27,788	21,127
Cost of revenues:
Total cost of revenues	23,988	19,061	15,945
Hardware and other
Revenues:
Total revenues	32,414	21,934	17,802
Cost of revenues:
Total cost of revenues	$ 23,674	$ 12,946	$ 12,401