Condensed Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues:
Software-enabled services	$ 150,123	$ 145,547	$ 303,690	$ 290,930
Software licenses	16,090	9,866	23,416	17,365
Maintenance	35,836	25,691	71,554	51,217
Professional services	10,719	7,618	19,843	15,020
Total revenues	212,768	188,722	418,503	374,532
Cost of revenues:
Software-enabled services	88,548	86,040	177,150	171,731
Software licenses	1,390	806	2,780	1,657
Maintenance	11,969	10,077	25,770	20,008
Professional services	7,596	5,310	16,110	10,336
Total cost of revenues	109,503	102,233	221,810	203,732
Gross profit	103,265	86,489	196,693	170,800
Operating expenses:
Selling and marketing	13,931	12,203	27,318	24,101
Research and development	17,520	13,939	37,128	27,526
General and administrative	13,463	14,958	30,763	26,759
Total operating expenses	44,914	41,100	95,209	78,386
Operating income	58,351	45,389	101,484	92,414
Interest expense, net	(5,419)	(6,569)	(11,019)	(13,667)
Other expense, net	(164)	(59)	(1,671)	(745)
Income before income taxes	52,768	38,761	88,794	78,002
Provision for income taxes	13,640	11,516	23,420	24,309
Net income	$ 39,128	$ 27,245	$ 65,374	$ 53,693
Basic earnings per share	$ 0.46	$ 0.33	$ 0.77	$ 0.65
Basic weighted average number of common shares outstanding	85,405	83,118	84,837	82,921
Diluted earnings per share	$ 0.44	$ 0.31	$ 0.73	$ 0.62
Diluted weighted average number of common and common equivalent shares outstanding	89,552	87,091	88,987	86,999
Net income	$ 39,128	$ 27,245	$ 65,374	$ 53,693
Other comprehensive income (loss):
Foreign currency exchange translation adjustment	22,808	15,922	(13,411)	9,616
Total comprehensive income (loss)	22,808	15,922	(13,411)	9,616
Comprehensive income	$ 61,936	$ 43,167	$ 51,963	$ 63,309