Segment Reporting and Major Customers - Geographic Revenues to External Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Geographic revenues to external revenues by operating segment
Total revenues	$ 1,184,725	$ 739,378
United States
Geographic revenues to external revenues by operating segment
Total revenues	1,020,895	579,567
Europe
Geographic revenues to external revenues by operating segment
Total revenues	70,195	69,813
Canada
Geographic revenues to external revenues by operating segment
Total revenues	76,471	69,915
Other
Geographic revenues to external revenues by operating segment
Total revenues	17,164	20,083
Issuer Solutions
Geographic revenues to external revenues by operating segment
Total revenues	423,881	417,201
Issuer Solutions | United States
Geographic revenues to external revenues by operating segment
Total revenues	260,729	257,649
Issuer Solutions | Europe
Geographic revenues to external revenues by operating segment
Total revenues	70,115	69,813
Issuer Solutions | Canada
Geographic revenues to external revenues by operating segment
Total revenues	76,195	69,850
Issuer Solutions | Other
Geographic revenues to external revenues by operating segment
Total revenues	16,842	19,889
Merchant Solutions
Geographic revenues to external revenues by operating segment
Total revenues	563,786	137,978
Merchant Solutions | United States
Geographic revenues to external revenues by operating segment
Total revenues	563,108	137,719
Merchant Solutions | Europe
Geographic revenues to external revenues by operating segment
Total revenues	80
Merchant Solutions | Canada
Geographic revenues to external revenues by operating segment
Total revenues	276	65
Merchant Solutions | Other
Geographic revenues to external revenues by operating segment
Total revenues	322	194
Netspend
Geographic revenues to external revenues by operating segment
Total revenues	197,058	184,199
Netspend | United States
Geographic revenues to external revenues by operating segment
Total revenues	$ 197,058	$ 184,199