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Proportionate share of income (loss) from PR Asset Portfolio 2013-1 International, LLC minority interest (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Related Party Transaction [Line Items]        
Income Loss From Equity Method Investments     $ 24,355 $ 34,214
PR Asset Portfolio 2013-1 International, LLC [Member]
       
Related Party Transaction [Line Items]        
Income Loss From Equity Method Investments $ 161 $ (2,303) $ 1,450 $ (2,303)