Information about Operations by Business Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Segment Reporting Information [Line Items]
Revenues	$ 88,642		$ 87,414		$ 266,973		$ 263,928
Income from operations	26,460		21,864		76,778		59,201
Operating Segments [Member]
Segment Reporting Information [Line Items]
Income from operations	35,921		33,906		106,670		95,099
Operating Segments [Member] | Merchant Acquiring, net [Member]
Segment Reporting Information [Line Items]
Revenues	19,227		18,211		58,345		53,835
Income from operations	8,518		8,568		25,700		25,963
Operating Segments [Member] | Payment Processing [Member]
Segment Reporting Information [Line Items]
Revenues	32,255		32,342		96,915		92,168
Income from operations	14,707		14,056		44,738		38,536
Operating Segments [Member] | Business Solutions [Member]
Segment Reporting Information [Line Items]
Revenues	43,805		44,472		131,609		136,965
Income from operations	12,696		11,282		36,232		30,600
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Income from operations	(9,461)	[1]	(12,042)	[1]	(29,892)	[1]	(35,898)	[1]
Other [Member]
Segment Reporting Information [Line Items]
Revenues	$ (6,645)	[2]	$ (7,611)	[2]	$ (19,896)	[2]	$ (19,040)	[2]

[1] Primarily represents non-operating depreciation and amortization expenses generated as a result of the Merger and certain non-recurring fees and expenses.

[2] Represents the elimination of intersegment revenues for services provided by the Payment Processing segment to the Merchant Acquiring segment, and other miscellaneous intersegment revenues.