CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Cloud and related solutions	$ 157,879	$ 149,992	$ 316,656	$ 299,806
Software and services	15,896	21,152	30,954	40,330
Maintenance	18,938	19,108	37,573	36,342
Total revenues	192,713	190,252	385,183	376,478
Cost of revenues (exclusive of depreciation, shown separately below):
Cloud and related solutions	77,286	70,195	153,338	136,428
Software and services	10,405	11,461	21,679	24,827
Maintenance	9,969	11,127	20,351	21,011
Total cost of revenues	97,660	92,783	195,368	182,266
Other operating expenses:
Research and development	27,939	24,281	54,779	47,907
Selling, general and administrative	36,819	34,980	74,165	69,031
Depreciation	3,316	3,509	6,631	7,025
Restructuring and reorganization charges	2,731	5,325	2,979	(416)
Total operating expenses	168,465	160,878	333,922	305,813
Operating income	24,248	29,374	51,261	70,665
Other income (expense):
Interest expense	(4,146)	(4,473)	(8,452)	(7,478)
Amortization of original issue discount	(625)	(1,136)	(1,513)	(2,794)
Interest and investment income, net	704	523	1,510	991
Loss on repurchase of convertible notes		(5,108)		(8,319)
Other, net	122	(1,895)	(153)	(2,686)
Total other	(3,945)	(12,089)	(8,608)	(20,286)
Income before income taxes	20,303	17,285	42,653	50,379
Income tax provision	(8,722)	(6,448)	(10,835)	(18,038)
Net income	$ 11,581	$ 10,837	$ 31,818	$ 32,341
Weighted-average shares outstanding:
Basic	32,572	30,942	32,294	30,852
Diluted	32,996	32,811	32,795	33,241
Earnings per common share:
Basic	$ 0.36	$ 0.35	$ 0.99	$ 1.05
Diluted	$ 0.35	$ 0.33	$ 0.97	$ 0.97