Reconciliation of Geographic Revenues to Revenues by Operating Segment Based on Domicile of Company's Customers (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Segment Reporting Information [Line Items]
Total revenues	$ 478,443		$ 462,651		$ 943,439		$ 923,813
North America Services
Segment Reporting Information [Line Items]
Total revenues	480,200		470,000		244,900		234,700
International Services
Segment Reporting Information [Line Items]
Total revenues	192,700		202,100		96,500		102,500
Merchant Services
Segment Reporting Information [Line Items]
Total revenues	270,500		251,700		137,000		125,500
United States
Segment Reporting Information [Line Items]
Total revenues	313,300		303,800		618,100		609,300
United States | North America Services
Segment Reporting Information [Line Items]
Total revenues	347,900		357,900		176,400		178,300
United States | Merchant Services
Segment Reporting Information [Line Items]
Total revenues	270,200		251,400		136,900		125,500
Europe
Segment Reporting Information [Line Items]
Total revenues	70,200	[1]	73,900	[1]	141,100	[1]	146,800	[1]
Europe | North America Services
Segment Reporting Information [Line Items]
Total revenues	400	[1]	300	[1]	200	[1]	200	[1]
Europe | International Services
Segment Reporting Information [Line Items]
Total revenues	140,700	[1]	146,500	[1]	70,000	[1]	73,700	[1]
Canada
Segment Reporting Information [Line Items]
Total revenues	61,000		51,000		117,800		101,800
Canada | North America Services
Segment Reporting Information [Line Items]
Total revenues	117,700		101,700		61,000		51,000
Canada | Merchant Services
Segment Reporting Information [Line Items]
Total revenues	100		100
Japan
Segment Reporting Information [Line Items]
Total revenues	16,800	[1]	19,500	[1]	33,200	[1]	37,900	[1]
Japan | International Services
Segment Reporting Information [Line Items]
Total revenues	33,200	[1]	37,900	[1]	16,800	[1]	19,500	[1]
Mexico
Segment Reporting Information [Line Items]
Total revenues	4,200		2,700		8,300		5,100
Mexico | North America Services
Segment Reporting Information [Line Items]
Total revenues	8,300		5,100		4,200		2,700
Other
Segment Reporting Information [Line Items]
Total revenues	12,900	[1]	11,800	[1]	24,900	[1]	22,900	[1]
Other | North America Services
Segment Reporting Information [Line Items]
Total revenues	5,900	[1]	5,000	[1]	3,100	[1]	2,500	[1]
Other | International Services
Segment Reporting Information [Line Items]
Total revenues	18,800	[1]	17,700	[1]	9,700	[1]	9,300	[1]
Other | Merchant Services
Segment Reporting Information [Line Items]
Total revenues	$ 200	[1]	$ 200	[1]	$ 100	[1]

[1] Revenues are impacted by movements in foreign currency exchange rates.