Reconciliation of Income from Operations to Consolidated Net Income (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 income from operations
Income from operations	$ 26,460		$ 21,864		$ 76,778		$ 59,201
Interest expense, net	(6,279)		(6,349)		(19,535)		(31,267)
Earnings of equity method investment	241		198		905		823
Other income (expenses)	(249)		448		2,127		(77,020)
Income tax (expense) benefit	(1,082)		(1,358)		(5,205)		3,603
Net income (loss)	19,091		14,803		55,070		(44,660)
Operating Segments [Member]
Segment income from operations
Income from operations	35,921		33,906		106,670		95,099
Operating Segments [Member] | Merchant Acquiring, net [Member]
Segment income from operations
Income from operations	8,518		8,568		25,700		25,963
Operating Segments [Member] | Payment Processing [Member]
Segment income from operations
Income from operations	14,707		14,056		44,738		38,536
Operating Segments [Member] | Business Solutions [Member]
Segment income from operations
Income from operations	12,696		11,282		36,232		30,600
Segment Reconciling Items [Member]
Segment income from operations
Income from operations	$ (9,461)	[1]	$ (12,042)	[1]	$ (29,892)	[1]	$ (35,898)	[1]

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