CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue:
Total revenue	$ 496,599	$ 473,850	$ 1,006,046	$ 898,927
Cost of sales:
Amortization	20,079	17,414	39,697	34,666
Total cost of sales	68,340	62,487	135,992	127,247
Gross profit	428,259	411,363	870,054	771,680
Operating expenses:
Selling, general and administrative	202,142	170,383	390,726	340,138
Research and development	125,023	108,941	245,358	214,215
Amortization	5,470	4,029	10,651	8,154
Total operating expenses	332,635	283,353	646,735	562,507
Operating income	95,624	128,010	223,319	209,173
Interest income	3,402	269	7,480	796
Interest expense	(11,560)	(4,609)	(22,318)	(7,576)
Other expense, net	(3,483)	(776)	(3,660)	(1,470)
Income before income tax provision	83,983	122,894	204,821	200,923
Income tax provision	14,457	24,094	34,673	31,135
Net income	$ 69,526	$ 98,800	$ 170,148	$ 169,788
Earnings per share – basic:
Earnings per share	$ 0.80	$ 1.14	$ 1.96	$ 1.95
Weighted average shares	86,696	87,001	86,813	87,062
Earnings per share – diluted:
Earnings per share	$ 0.80	$ 1.13	$ 1.95	$ 1.94
Weighted average shares	87,192	87,321	87,312	87,535
Software licenses
Revenue:
Total revenue	$ 204,897	$ 208,981	$ 424,049	$ 366,426
Cost of sales:
Cost of sales:	8,659	8,509	20,403	16,945
Maintenance and service
Revenue:
Total revenue	291,702	264,869	581,997	532,501
Cost of sales:
Cost of sales:	$ 39,602	$ 36,564	$ 75,892	$ 75,636