Note Related party transactions (Impact on the results of operations of transactions between the Corporation and EVERTEC) (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 2,639	$ 29,488
EVERTEC Inc. \| Deposits
Related Party Transaction [Line Items]
Interest Expense Related Party	(64)	(58)	$ (67)
EVERTEC Inc. \| Other Fee Revenue
Related Party Transaction [Line Items]
Related Party Transaction Revenues From Transactions With Related Party	29,739	27,816	26,646
EVERTEC Inc. \| Rental Income
Related Party Transaction [Line Items]
Related Party Transaction Revenues From Transactions With Related Party	6,995	6,898	6,874
EVERTEC Inc. \| Processing Fees
Related Party Transaction [Line Items]
Expenses from Transactions with related party	(178,524)	(164,809)	(154,839)
EVERTEC Inc. \| Other Expense
Related Party Transaction [Line Items]
Related Party Transaction Revenues From Transactions With Related Party	1,052	1,311	1,012
EVERTEC Inc. \| Total
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ (140,802)	$ (128,842)	$ (120,374)

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Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=16382449

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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