XML 92 R93.htm IDEA: XBRL DOCUMENT v2.4.0.6
Long-Term Debt - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Jun. 30, 2012
Jun. 04, 2012
Dec. 31, 2012
Third call option [Member]
Dec. 31, 2012
Minimum [Member]
Dec. 31, 2011
Minimum [Member]
Dec. 31, 2011
Maximum [Member]
Dec. 31, 2012
Maximum [Member]
Dec. 31, 2012
Surplus Notes [Member]
Dec. 31, 2011
Surplus Notes [Member]
Dec. 31, 2012
5.1% junior surplus notes, segregated account, due 2020 [Member]
May 31, 2011
5.1% junior surplus notes, segregated account, due 2020 [Member]
Dec. 31, 2012
5.1% surplus notes, segregated account, due 2020 [Member]
Dec. 31, 2011
5.1% surplus notes, segregated account, due 2020 [Member]
Jun. 30, 2012
5.1% surplus notes, general account, due 2020 [Member]
Debt Instrument [Line Items]                                
Aggregate outstanding Segregated Account Surplus Notes                   $ 1,210,821 $ 2,000,000 $ 36,082 $ 36,082 $ 53,000 $ 53,000  
Long-term debt interest rate                   53.90%   58.30%   52.80%    
Maturity period                   Jun. 07, 2020   Jun. 07, 2020   Jun. 07, 2020    
Aggregate par amount of surplus notes subject to repurchase 939,179                              
Total par value of repurchased surplus notes     789,179 789,179                        
Aggregate payment to repurchase surplus notes       188,446                       188,446
Additional borrowings of debt         150,000                      
Losses (gains)on extinguishment of debt (177,580) 3,119     177,745                      
Unpaid principal amount of outstanding long-term debt 15,684,925 15,337,407                            
Maturity period           2013-02 2012-02 2047-12                
Debt Instrument, Interest Rate, Effective Percentage Rate Range 8.97%         0.39% 1.00% 12.63% 12.63%              
Notes outstanding par value 14,588 35,600                            
Interest on secured borrowings 6.65%                              
Securities in invested assets outstanding par amount 266,848 329,129                            
Securities in invested assets fair value 201,329 172,880                            
VIE long-term debt, 2013 660,050                              
VIE long-term debt, 2014 189,597                              
VIE long-term debt, 2015 576,268                              
VIE long-term debt, 2016 0                              
VIE long-term debt, 2017 $ 0