v2.4.0.8
Senior Secured Notes and Subordinated Notes (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Senior Secured Notes
   
Debt Instrument [Line Items]    
Fair Value $ 5,322,648 $ 8,302,572
Subordinated Notes
   
Debt Instrument [Line Items]    
Fair Value 360,272 610,435
Non-Consolidated Affiliates Senior Secured Notes | Senior Secured Notes
   
Debt Instrument [Line Items]    
Borrowing Outstanding 4,500 14,500
Fair Value 4,367 13,732
Non-Consolidated Affiliates Senior Secured Notes | Subordinated Notes
   
Debt Instrument [Line Items]    
Borrowing Outstanding 40,059 224,444
Fair Value $ 23,218 $ 110,197