CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:
Processing and related services	$ 136,357	$ 131,184	$ 278,715	$ 265,818
Software and services	25,618	31,391	50,474	56,755
Maintenance	22,583	23,532	43,397	44,166
Total revenues	184,558	186,107	372,586	366,739
Cost of revenues (exclusive of depreciation, shown separately below):
Processing and related services	67,364	62,964	135,791	124,541
Software and services	17,871	22,506	43,191	43,945
Maintenance	8,447	9,288	16,804	19,626
Total cost of revenues	93,682	94,758	195,786	188,112
Other operating expenses:
Research and development	26,437	27,548	51,444	56,093
Selling, general and administrative	39,140	37,388	74,439	72,185
Depreciation	3,440	4,770	6,926	9,770
Restructuring charges	39	(38)	1,257	863
Total operating expenses	162,738	164,426	329,852	327,023
Operating income	21,820	21,681	42,734	39,716
Other income (expense):
Interest expense	(2,546)	(3,180)	(5,318)	(6,109)
Amortization of original issue discount	(1,430)	(1,325)	(2,834)	(2,624)
Interest and investment income, net	225	188	438	343
Other, net	(328)	1,498	(277)	1,080
Total other	(4,079)	(2,819)	(7,991)	(7,310)
Income before income taxes	17,741	18,862	34,743	32,406
Income tax provision	(8,338)	(6,790)	(15,649)	(5,436)
Net income	$ 9,403	$ 12,072	$ 19,094	$ 26,970
Weighted-average shares outstanding:
Basic	32,619	32,125	32,469	32,129
Diluted	33,543	32,439	33,789	32,483
Earnings per common share:
Basic	$ 0.29	$ 0.38	$ 0.59	$ 0.84
Diluted	$ 0.28	$ 0.37	$ 0.57	$ 0.83
Cash dividends declared per common share:	$ 0.1575	$ 0.1500	$ 0.3075	$ 0.1500