Consolidated Statements of Comprehensive (Loss) Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Software-enabled services	$ 670,170	$ 592,528	$ 552,565
Maintenance and term licenses	246,422	115,609	112,889
Total recurring revenues	916,592	708,137	665,454
Perpetual licenses	31,467	26,328	19,207
Professional services	52,226	33,396	28,041
Total non-recurring revenues	83,693	59,724	47,248
Total revenues	1,000,285	767,861	712,702
Cost of revenues:
Software-enabled services	373,394	342,625	322,719
Maintenance and term licenses	113,865	41,424	41,215
Total recurring cost of revenues	487,259	384,049	363,934
Perpetual licenses	3,116	3,531	5,133
Professional services	41,975	23,151	19,733
Total non-recurring cost of revenues	45,091	26,682	24,866
Total cost of revenues	532,350	410,731	388,800
Gross profit	467,935	357,130	323,902
Operating expenses:
Selling and marketing	94,950	48,592	41,885
Research and development	110,415	57,287	53,862
General and administrative	97,832	50,879	45,187
Total operating expenses	303,197	156,758	140,934
Operating income	164,738	200,372	182,968
Interest income	1,976	1,705	1,116
Interest expense	(79,333)	(27,177)	(42,395)
Other income, net	3,878	2,754	3,498
Loss on extinguishment of debt	(30,417)
Income before income taxes	60,842	177,654	145,187
Provision for income taxes (Note 5)	17,980	46,527	27,292
Net income	$ 42,862	$ 131,127	$ 117,895
Basic earnings per share	$ 0.47	$ 1.57	$ 1.45
Basic weighted average number of common shares outstanding	91,098	83,314	81,195
Diluted earnings per share	$ 0.45	$ 1.50	$ 1.38
Diluted weighted average number of common and common equivalent shares outstanding	95,448	87,331	85,616
Net income	$ 42,862	$ 131,127	$ 117,895
Other comprehensive loss, net of tax:
Foreign currency exchange translation adjustment	(68,049)	(45,495)	(21,144)
Total comprehensive loss, net of tax	(68,049)	(45,495)	(21,144)
Comprehensive (loss) income	$ (25,187)	$ 85,632	$ 96,751