Consolidated Statements of Income (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues
Total revenues	$ 199,943	$ 153,916
Cost of revenues
Operating expenses	24,776	20,568
Depreciation and amortization	4,542	3,037
Total cost of revenues	29,318	23,605
Administrative expenses
Sales and marketing	39,645	32,352
Research and development	18,489	11,250
General and administrative	45,198	32,657
Depreciation and amortization	4,805	3,032
Total administrative expenses	108,137	79,291
Total operating expenses	137,455	102,896
Operating income	62,488	51,020
Interest expense	(276)
Other income, net	(100)	1,030
Income before income taxes	62,112	52,050
Provision for income taxes	14,830	10,890
Net income	$ 47,282	$ 41,160
Earnings per share, basic	$ 0.82	$ 0.71
Earnings per share, diluted	$ 0.81	$ 0.70
Weighted average shares outstanding:
Basic	57,357,490	57,793,023
Diluted	58,316,154	58,738,732
Recurring [Member]
Revenues
Total revenues	$ 196,864	$ 151,885
Implementation and Other [Member]
Revenues
Total revenues	$ 3,079	$ 2,031