Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Total revenues	$ 242,368	$ 199,943
Cost of revenues
Operating expenses	24,116	24,776
Depreciation and amortization	5,930	4,542
Total cost of revenues	30,046	29,318
Administrative expenses
Sales and marketing	55,018	39,645
Research and development	21,621	18,489
General and administrative	40,134	45,198
Depreciation and amortization	6,285	4,805
Total administrative expenses	123,058	108,137
Total operating expenses	153,104	137,455
Operating income	89,264	62,488
Interest expense	(16)	(276)
Other income (expense), net	(930)	(100)
Income before income taxes	88,318	62,112
Provision for income taxes	25,303	14,830
Net income	$ 63,015	$ 47,282
Earnings per share, basic	$ 1.09	$ 0.82
Earnings per share, diluted	$ 1.08	$ 0.81
Weighted average shares outstanding:
Basic	57,655	57,357
Diluted	58,440	58,316
Recurring [Member]
Revenues
Total revenues	$ 238,495	$ 196,864
Implementation and Other [Member]
Revenues
Total revenues	$ 3,873	$ 3,079