Schedule I - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended
Dec. 18, 2012	May 09, 2012
Equity [Abstract]
Cash distribution received	$ 50.3	$ 269.8

Dividends received from subsidiaries during the current period.

No definition available.

Name:	evtc_ProceedsFromDividendsReceivedFromSubsidiaries
Namespace Prefix:	evtc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration