Impact on the Results of Operations of Transactions Between the Corporation and EVERTEC (Detail) (EVERTEC, Inc, Equity Method Investee, USD $) In Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011
100% | Interest income
Related Party Transaction [Line Items]
Income from Transactions with related party	$ 881	$ 1,937
100% | Other Interest income
Related Party Transaction [Line Items]
Income from Transactions with related party	962	1,925
100% | Interest expense
Related Party Transaction [Line Items]
Expenses from Transactions with related party	(107)	(402)
100% | Other service fees
Related Party Transaction [Line Items]
Income from Transactions with related party	7,279	14,072
100% | Professional fees
Related Party Transaction [Line Items]
Expenses from Transactions with related party	(37,122)	(75,800)
100% | Net occupancy
Related Party Transaction [Line Items]
Income from Transactions with related party	1,797	3,604
100% | Other operating expenses
Related Party Transaction [Line Items]
Income from Transactions with related party	297	666
51% majority interest | Interest income
Related Party Transaction [Line Items]
Income from Transactions with related party	450	988
51% majority interest | Other Interest income
Related Party Transaction [Line Items]
Income from Transactions with related party	491	982
51% majority interest | Interest expense
Related Party Transaction [Line Items]
Expenses from Transactions with related party	(55)	(205)
51% majority interest | Other service fees
Related Party Transaction [Line Items]
Income from Transactions with related party	3,712	7,177
51% majority interest | Professional fees
Related Party Transaction [Line Items]
Expenses from Transactions with related party	(18,932)	(38,658)
51% majority interest | Net occupancy
Related Party Transaction [Line Items]
Income from Transactions with related party	917	1,838
51% majority interest | Other operating expenses
Related Party Transaction [Line Items]
Income from Transactions with related party	$ 152	$ 340