CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues:
Processing and related services	$ 577,410	$ 562,109	$ 537,453
Software and services	93,678	102,585	118,988
Maintenance	81,432	86,592	91,027
Total revenues	752,520	751,286	747,468
Cost of revenues (exclusive of depreciation, shown separately below):
Processing and related services	270,715	277,084	253,756
Software and services	68,597	79,640	84,222
Maintenance	40,429	32,619	39,187
Total cost of revenues	379,741	389,343	377,165
Other operating expenses:
Research and development	101,950	104,712	110,008
Selling, general and administrative	139,839	153,488	152,553
Depreciation	14,776	14,084	18,633
Restructuring and reorganization charges	3,074	13,969	12,405
Total operating expenses	639,380	675,596	670,764
Operating income	113,140	75,690	76,704
Other income (expense):
Interest expense	(10,967)	(10,453)	(11,621)
Amortization of original issue discount	(6,246)	(5,781)	(5,352)
Interest and investment income, net	1,038	798	689
Other, net	(624)	1,268	1,099
Total other	(16,799)	(14,168)	(15,185)
Income before income taxes	96,341	61,522	61,519
Income tax provision	(33,774)	(25,811)	(16,251)
Net income	$ 62,567	$ 35,711	$ 45,268
Weighted-average shares outstanding:
Basic	31,051	32,449	32,117
Diluted	33,438	33,736	32,873
Earnings per common share:
Basic	$ 2.01	$ 1.10	$ 1.41
Diluted	1.87	1.06	1.38
Cash dividends declared per common share:	$ 0.70	$ 0.6225	$ 0.45