Annual report pursuant to Section 13 and 15(d)

Other Long-term Debt (Details)

v2.4.0.8
Other Long-term Debt (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount $ 312,894  
Other Long-term Debt 1,349,119 158,784
Long Term Debt By Maturity [Line Items]    
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 141  
Long-term Debt, Maturities, Repayments of Principal in Year Two 0  
Long-term Debt, Maturities, Repayments of Principal in Year Three 850,000  
Long-term Debt, Maturities, Repayments of Principal in Year Four 0  
Long-term Debt, Maturities, Repayments of Principal in Year Five 435,000  
Long-term Debt, Maturities, Repayments of Principal after Year Five 65,000  
Medium-term Notes [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 39,497 41,557
Debt Instrument, Interest Rate, Effective Percentage 4.95%  
Debt Instrument, Maturity Date Dec. 31, 2018  
Securitization Trust Notes Payable Due Through 2013 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 0 0
Securitization Trust Note Payable Due 2014 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 0 0
Securitization Trust Note Payable Due 2018 [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 0 2,086
Debt Instrument, Interest Rate, Effective Percentage 0.88%  
Debt Instrument, Maturity Date Dec. 31, 2018  
Class B Preferred Securities Of Subsidiary No Maturity [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 65,000 65,000
Debt Instrument, Interest Rate, Effective Percentage 2.52%  
Class C Preferred Securities Of Subsidiary No Maturity [Member]
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount 0 50,000
Debt Instrument, Interest Rate, Effective Percentage 7.88%  
Other
   
Debt Instrument [Line Items]    
Debt Instrument, Carrying Amount $ 141 $ 141