Unaudited Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues
Total revenues	$ 499,881	$ 451,637
Cost of revenues
Operating expenses	63,670	53,085
Depreciation and amortization	14,961	12,147
Total cost of revenues	78,631	65,232
Administrative expenses
Sales and marketing	115,524	103,574
Research and development	50,509	42,669
General and administrative	(48,104)	65,605
Depreciation and amortization	17,507	14,125
Total administrative expenses	135,436	225,973
Total operating expenses	214,067	291,205
Operating income	285,814	160,432
Interest expense	(782)	(837)
Other income (expense), net	5,009	6,004
Income before income taxes	290,041	165,599
Provision for income taxes	42,854	46,303
Net income	$ 247,187	$ 119,296
Earnings per share, basic	$ 4.37	$ 2.06
Earnings per share, diluted	$ 4.37	$ 2.06
Weighted average shares outstanding:
Basic	56,546	57,867
Diluted	56,552	57,991
Comprehensive earnings:
Net income	$ 247,187	$ 119,296
Unrealized net gains on available-for-sale securities	837	1,050
Tax effect	(293)	(200)
Other comprehensive income, net of tax	544	850
Comprehensive earnings	247,731	120,146
Recurring [Member]
Revenues
Total revenues	491,896	444,421
Implementation and Other [Member]
Revenues
Total revenues	$ 7,985	$ 7,216