Reconciliation of Geographic Revenues to External Revenues by Operating Segments (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Total revenues		$ 707,890	$ 616,891	$ 2,062,698	$ 1,811,774
Total revenues		707,890	616,891	2,062,698	1,811,774
United States
Segment Reporting Information [Line Items]
Total revenues		540,200	443,600	1,561,100	1,320,900
Total revenues		540,200	443,600	1,561,100	1,320,900
Canada
Segment Reporting Information [Line Items]
Total revenues	[1]	68,500	75,500	218,900	207,600
Total revenues	[1]	68,500	75,500	218,900	207,600
Europe
Segment Reporting Information [Line Items]
Total revenues	[1]	79,600	78,400	224,300	224,800
Total revenues	[1]	79,600	78,400	224,300	224,800
Mexico
Segment Reporting Information [Line Items]
Total revenues		4,000	4,000	12,400	12,200
Total revenues		4,000	4,000	12,400	12,200
Other
Segment Reporting Information [Line Items]
Total revenues	[1]	15,600	15,400	46,000	46,300
Total revenues	[1]	15,600	15,400	46,000	46,300
North America Services
Segment Reporting Information [Line Items]
Total revenues		334,700	279,500	961,800	805,400
Total revenues		334,700	279,500	961,800	805,400
North America Services | United States
Segment Reporting Information [Line Items]
Total revenues		257,800	195,800	716,100	573,400
Total revenues		257,800	195,800	716,100	573,400
North America Services | Canada
Segment Reporting Information [Line Items]
Total revenues	[1]	68,400	75,400	218,600	207,400
Total revenues	[1]	68,400	75,400	218,600	207,400
North America Services | Europe
Segment Reporting Information [Line Items]
Total revenues	[1]	200	200	600	500
Total revenues	[1]	200	200	600	500
North America Services | Mexico
Segment Reporting Information [Line Items]
Total revenues		4,000	4,000	12,400	12,200
Total revenues		4,000	4,000	12,400	12,200
North America Services | Other
Segment Reporting Information [Line Items]
Total revenues	[1]	4,300	4,100	14,100	11,900
Total revenues	[1]	4,300	4,100	14,100	11,900
International Services
Segment Reporting Information [Line Items]
Total revenues		90,500	89,300	255,100	258,200
Total revenues		90,500	89,300	255,100	258,200
International Services | Europe
Segment Reporting Information [Line Items]
Total revenues	[1]	79,400	78,200	223,700	224,300
Total revenues	[1]	79,400	78,200	223,700	224,300
International Services | Other
Segment Reporting Information [Line Items]
Total revenues	[1]	11,100	11,100	31,400	33,900
Total revenues	[1]	11,100	11,100	31,400	33,900
Merchant Services
Segment Reporting Information [Line Items]
Total revenues		143,100	134,100	409,500	384,700
Total revenues		143,100	134,100	409,500	384,700
Merchant Services | United States
Segment Reporting Information [Line Items]
Total revenues		142,800	133,800	408,700	384,000
Total revenues		142,800	133,800	408,700	384,000
Merchant Services | Canada
Segment Reporting Information [Line Items]
Total revenues	[1]	100	100	300	200
Total revenues	[1]	100	100	300	200
Merchant Services | Other
Segment Reporting Information [Line Items]
Total revenues	[1]	200	200	500	500
Total revenues	[1]	200	200	500	500
NetSpend
Segment Reporting Information [Line Items]
Total revenues		139,600	114,000	436,300	363,500
Total revenues		139,600	114,000	436,300	363,500
NetSpend | United States
Segment Reporting Information [Line Items]
Total revenues		139,600	114,000	436,300	363,500
Total revenues		$ 139,600	$ 114,000	$ 436,300	$ 363,500

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