CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue:
Total revenue	$ 2,269,949	$ 2,065,553	$ 1,906,715
Cost of sales:
Amortization	80,990	69,372	60,762
Total cost of sales	271,298	250,641	257,984
Gross profit	1,998,651	1,814,912	1,648,731
Operating expenses:
Selling, general and administrative	855,135	772,871	715,377
Research and development	494,869	433,661	404,870
Amortization	22,512	15,722	15,213
Total operating expenses	1,372,516	1,222,254	1,135,460
Operating income	626,135	592,658	513,271
Interest income	19,588	5,717	2,078
Interest expense	(47,145)	(22,726)	(12,405)
Other (expense) income, net	(6,440)	(334)	12,410
Income before income tax provision	592,138	575,315	515,354
Income tax provision	91,726	51,605	60,727
Net income	$ 500,412	$ 523,710	$ 454,627
Earnings per share – basic:
Earnings per share	$ 5.76	$ 6.02	$ 5.22
Weighted average shares	86,833	87,051	87,100
Earnings per share – diluted:
Earnings per share	$ 5.73	$ 5.99	$ 5.16
Weighted average shares	87,386	87,490	88,102
Software licenses
Revenue:
Total revenue	$ 1,088,748	$ 988,978	$ 945,797
Cost of sales:
Cost of sales	40,004	33,081	38,156
Maintenance and service
Revenue:
Total revenue	1,181,201	1,076,575	960,918
Cost of sales:
Cost of sales	$ 150,304	$ 148,188	$ 159,066