CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Cloud and related solutions	$ 158,777	$ 149,814
Software and services	15,058	19,178
Maintenance	18,635	17,234
Total revenues	192,470	186,226
Cost of revenues (exclusive of depreciation, shown separately below):
Cloud and related solutions	76,052	66,233
Software and services	11,274	13,366
Maintenance	10,382	9,884
Total cost of revenues	97,708	89,483
Other operating expenses:
Research and development	26,840	23,626
Selling, general and administrative	37,346	34,051
Depreciation	3,315	3,516
Restructuring and reorganization charges	248	(5,741)
Total operating expenses	165,457	144,935
Operating income	27,013	41,291
Other income (expense):
Interest expense	(4,306)	(3,005)
Amortization of original issue discount	(888)	(1,658)
Interest and investment income, net	806	468
Loss on repurchase of convertible notes		(3,211)
Other, net	(275)	(791)
Total other	(4,663)	(8,197)
Income before income taxes	22,350	33,094
Income tax provision	(2,113)	(11,590)
Net income	$ 20,237	$ 21,504
Weighted-average shares outstanding:
Basic	32,016	30,762
Diluted	32,594	33,672
Earnings per common share:
Basic	$ 0.63	$ 0.70
Diluted	$ 0.62	$ 0.64