Goodwill and Other Intangible Assets - Goodwill by Segments (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Changes in the Carrying Amount of Goodwill
Beginning balance	$ 398,575
Foreign currency translation adjustments	(1,354)
Ending balance	397,221
Payment Services - Puerto Rico & Caribbean
Changes in the Carrying Amount of Goodwill
Beginning balance	160,972
Foreign currency translation adjustments	0
Ending balance	160,972
Payment Services - Latin America
Changes in the Carrying Amount of Goodwill
Beginning balance	53,659
Foreign currency translation adjustments	(1,354)
Ending balance	52,305
Merchant Acquiring, net
Changes in the Carrying Amount of Goodwill
Beginning balance	138,121
Foreign currency translation adjustments	0
Ending balance	138,121
Business Solutions
Changes in the Carrying Amount of Goodwill
Beginning balance	45,823
Foreign currency translation adjustments	0
Ending balance	$ 45,823