Related Party Transactions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2014
Transactions with Third Party [Line Items]
Letter of credit issued by Popular	$ 3.6
Apollo Management [Member]
Transactions with Third Party [Line Items]
Termination fee	8.5
Popular [Member]
Transactions with Third Party [Line Items]
Termination fee	$ 8.2

Outstanding letters of credit used for collateral to related party.

No definition available.

Name:	evtc_OutstandingLettersOfCreditForWhichCollateralProvidedToRelatedParty
Namespace Prefix:	evtc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant