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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 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Related Party Transaction [Line Items]        
Income Loss From Equity Method Investments     $ 31,930 $ 42,740
PR Asset Portfolio 2013-1 International, LLC [Member]
       
Related Party Transaction [Line Items]        
Income Loss From Equity Method Investments $ (1,152) $ (51) $ 298 $ (2,354)