Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Total revenue	$ 149,757	$ 162,275	$ 439,290	$ 465,020
Total costs	65,199	74,366	203,055	213,114
Research and development	20,454	22,614	63,713	65,824
Sales and marketing	11,399	12,125	34,196	41,426
General and administrative	15,536	16,236	45,666	48,091
Depreciation and amortization	2,193	1,937	6,796	5,710
Total costs and expenses	114,781	127,278	353,426	374,165
Operating income	34,976	34,997	85,864	90,855
Other (loss) income, net	(891)	810	371	368
Income before income taxes	34,085	35,807	86,235	91,223
Income tax provision	9,119	8,700	19,535	22,219
Net income	$ 24,966	$ 27,107	$ 66,700	$ 69,004
Basic earnings per share	$ 0.39	$ 0.42	$ 1.05	$ 1.07
Diluted earnings per share	$ 0.39	$ 0.42	$ 1.04	$ 1.06
Weighted average number of shares:
Basic	63,524	64,247	63,541	64,591
Diluted	64,427	64,992	64,298	65,112
Cloud Subscriptions
Total revenue	$ 21,064	$ 14,242	$ 56,827	$ 31,110
Software License
Total revenue	13,233	15,486	28,649	39,621
Total costs	527	748	1,673	1,963
Maintenance
Total revenue	37,305	37,763	108,947	111,185
Services
Total revenue	73,470	91,626	232,654	274,208
Hardware
Total revenue	4,685	3,158	12,213	8,896
Cloud Subscriptions, Maintenance and Services
Total costs	$ 64,672	$ 73,618	$ 201,382	$ 211,151