CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Total revenue	$ 2,065,553	$ 1,906,715	$ 1,681,297
Cost of sales:
Amortization	69,372	60,762	40,642
Total cost of sales	250,641	257,984	225,264
Gross profit	1,814,912	1,648,731	1,456,033
Operating expenses:
Selling, general and administrative	772,871	715,377	587,707
Research and development	433,661	404,870	355,371
Amortization	15,722	15,213	16,599
Total operating expenses	1,222,254	1,135,460	959,677
Operating income	592,658	513,271	496,356
Interest income	5,717	2,078	5,073
Interest expense	(22,726)	(12,405)	(10,988)
Other (expense) income, net	(334)	12,410	3,484
Income before income tax provision	575,315	515,354	493,925
Income tax provision	51,605	60,727	60,038
Net income	$ 523,710	$ 454,627	$ 433,887
Earnings per share – basic:
Earnings per share	$ 6.02	$ 5.22	$ 5.05
Weighted average shares	87,051	87,100	85,840
Earnings per share – diluted:
Earnings per share	$ 5.99	$ 5.16	$ 4.97
Weighted average shares	87,490	88,102	87,288
Software licenses
Revenue:
Total revenue	$ 988,978	$ 945,797	$ 780,850
Cost of sales:
Cost of sales	33,081	38,156	30,618
Maintenance and service
Revenue:
Total revenue	1,076,575	960,918	900,447
Cost of sales:
Cost of sales	$ 148,188	$ 159,066	$ 154,004