CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues:
Cloud and related solutions	$ 149,992	$ 141,289	$ 299,806	$ 285,122
Software and services	21,152	22,437	40,330	45,070
Maintenance	19,108	18,915	36,342	38,080
Total revenues	190,252	182,641	376,478	368,272
Cost of revenues (exclusive of depreciation, shown separately below):
Cloud and related solutions	70,195	64,767	136,428	134,027
Software and services	11,461	16,559	24,827	37,668
Maintenance	11,127	10,470	21,011	20,367
Total cost of revenues	92,783	91,796	182,266	192,062
Other operating expenses:
Research and development	24,281	25,897	47,907	51,626
Selling, general and administrative	34,980	34,572	69,031	68,014
Depreciation	3,509	3,850	7,025	7,545
Restructuring and reorganization charges	5,325	370	(416)	976
Total operating expenses	160,878	156,485	305,813	320,223
Operating income	29,374	26,156	70,665	48,049
Other income (expense):
Interest expense	(4,473)	(2,537)	(7,478)	(5,905)
Amortization of original issue discount	(1,136)	(1,547)	(2,794)	(3,063)
Interest and investment income, net	523	229	991	396
Loss on repurchase of convertible notes	(5,108)		(8,319)
Other, net	(1,895)	145	(2,686)	(320)
Total other	(12,089)	(3,710)	(20,286)	(8,892)
Income before income taxes	17,285	22,446	50,379	39,157
Income tax provision	(6,448)	(9,652)	(18,038)	(17,005)
Net income	$ 10,837	$ 12,794	$ 32,341	$ 22,152
Weighted-average shares outstanding:
Basic	30,942	30,798	30,852	31,170
Diluted	32,811	33,095	33,241	33,217
Earnings per common share:
Basic	$ 0.35	$ 0.42	$ 1.05	$ 0.71
Diluted	0.33	0.39	0.97	0.67
Cash dividends declared per common share:	$ 0.185	$ 0.175	$ 0.37	$ 0.35