The Company and Basis of Presentation (Detail) - Subsequent Events	Jul. 03, 2017 country
Business Acquisition [Line Items]
Number of countries where the Company provides a broad range of merchant acquiring, payment processing and business process management services (in country)	27
EFT Group S.A. (PayGroup)
Business Acquisition [Line Items]
Percentage of share capital acquired	100.00%

Percentage of voting equity interests acquired at the acquisition date in the business combination.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant