v2.4.0.8
Information for Financial Instruments on Which Fair Value Option was Elected (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Fair Value, Option, Quantitative Disclosures [Line Items]    
Uncollected principal balance on financial instruments that exceeded fair value total $ (168,501) $ (283,576)
Fair value of financial instruments more than one day past due 3,004 [1] 57,837 [1]
Uncollected principal balance on financial instruments that exceeds fair value more than one day past due (21,245) [1] (176,379) [1]
Fair value of financial instruments with non-accrual status   0
Uncollected principal balance on financial instruments that exceeds fair value with non-accrual status (1,703)  
Corporate Bonds
   
Fair Value, Option, Quantitative Disclosures [Line Items]    
Uncollected principal balance on financial instruments that exceeded fair value total (596) (1,789)
Fair value of financial instruments more than one day past due 0 0
Fair value of financial instruments with non-accrual status 0 0
Loans And Receivables
   
Fair Value, Option, Quantitative Disclosures [Line Items]    
Uncollected principal balance on financial instruments that exceeded fair value total (1,102) (533)
Fair value of financial instruments more than one day past due   0
Fair value of financial instruments with non-accrual status   0
Uncollected principal balance on financial instruments that exceeds fair value with non-accrual status (1,703)  
Corporate Loans
   
Fair Value, Option, Quantitative Disclosures [Line Items]    
Uncollected principal balance on financial instruments that exceeded fair value total (166,803) (281,254)
Fair value of financial instruments more than one day past due 3,004 [1] 57,837 [1]
Uncollected principal balance on financial instruments that exceeds fair value more than one day past due $ (21,245) [1] $ (176,379) [1]
[1] Corporate Loans and Corporate Bonds within CLO assets are classified as past due if contractual payments are more than one day past due.