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Note Related party transactions (Related party transactions with affiliated company - Equity Method - Additional Information) (Detail) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Jun. 30, 2013
Sep. 30, 2011
Financial Standby Letter Of Credit Member          
Related Party Transaction [Line Items]          
Guarantee Obligations Current Carrying Value   $ 0.3 $ 0.5    
PRLP 2011 Holding, LLC          
Related Party Transaction [Line Items]          
Equity Method Investment Ownership Percentage   24.90%     24.90%
Proceeds from Equity Method Investment, Dividends or Distributions   $ 3.4 6.6    
PR Asset Portfolio 2013-1 International, LLC          
Related Party Transaction [Line Items]          
Equity Method Investment Ownership Percentage   24.90%   24.90%  
EVERTEC Inc.          
Related Party Transaction [Line Items]          
Equity Method Investment Ownership Percentage   16.05%      
Proceeds from Equity Method Investment, Dividends or Distributions   $ 4.7 4.7    
Proportionate Share Of The Cumulative Impact Of The Evertec Restatement $ 2.2        
EVERTEC Inc. | Financial Standby Letter Of Credit Member          
Related Party Transaction [Line Items]          
Guarantee Obligations Current Carrying Value     $ 4.2