CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues:
Processing and related services	$ 143,833	$ 142,358
Software and services	22,633	24,856
Maintenance	19,165	20,814
Total revenues	185,631	188,028
Cost of revenues (exclusive of depreciation, shown separately below):
Processing and related services	69,260	68,427
Software and services	21,109	25,320
Maintenance	9,897	8,357
Total cost of revenues	100,266	102,104
Other operating expenses:
Research and development	25,729	25,007
Selling, general and administrative	33,442	35,299
Depreciation	3,695	3,486
Restructuring and reorganization charges	606	1,218
Total operating expenses	163,738	167,114
Operating income	21,893	20,914
Other income (expense):
Interest expense	(3,368)	(2,772)
Amortization of original issue discount	(1,516)	(1,404)
Interest and investment income, net	167	213
Other, net	(465)	51
Total other	(5,182)	(3,912)
Income before income taxes	16,711	17,002
Income tax provision	(7,353)	(7,311)
Net income	$ 9,358	$ 9,691
Weighted-average shares outstanding:
Basic	31,542	32,319
Diluted	33,340	34,035
Earnings per common share:
Basic	$ 0.30	$ 0.30
Diluted	$ 0.28	$ 0.28
Cash dividends declared per common share:	$ 0.175	$ 0.150