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Schedule I - Summary Of Investments - Other Than Investments In Related Parties
12 Months Ended
Dec. 31, 2012
Schedule I - Summary Of Investments - Other Than Investments In Related Parties [Abstract]  
Schedule I - Summary Of Investments - Other Than Investments In Related Parties

SCHEDULE I — SUMMARY OF INVESTMENTS —
                 
OTHER THAN INVESTMENTS IN RELATED PARTIES
                 
December 31, 2012
                 
                   
Column A
 
Column B
   
Column C
   
Column D
 
               
Amount
 
               
Shown in
 
         
Market
   
Balance
 
(Dollars in thousands)
 
Cost
   
Value
   
Sheet
 
Fixed maturities-available for sale
                 
Bonds:
                 
U.S. government and government agencies
  $ 302,050     $ 312,122     $ 312,122  
State, municipalities and political subdivisions
    1,214,990       1,291,963       1,291,963  
Foreign government securities
    1,785,738       1,912,228       1,912,228  
Foreign corporate securities
    2,783,580       2,933,174       2,933,174  
Public utilities
    324,999       353,657       353,657  
All other corporate bonds
    3,612,571       3,830,389       3,830,389  
Mortgage - backed securities:
                       
Commercial
    294,596       320,088       320,088  
Agency residential
    2,091,672       2,152,135       2,152,135  
Non-agency residential
    7,660       8,049       8,049  
Redeemable preferred stock
    27,024       27,852       27,852  
Total fixed maturities-available for sale
    12,444,880       13,141,657       13,141,657  
Fixed maturities - available for sale at fair value (1)
    41,068       41,470       41,470  
Equity securities - available for sale at market value
    131,630       143,493       143,493  
Equity securities - available for sale at fair value (1)
    1,080,870       1,255,557       1,255,557  
Short-term investments
    860,379       860,379       860,379  
Other invested assets
    596,590       596,590       596,590  
Cash
    537,050       537,050       537,050  
                         
Total investments and cash
  $ 15,692,467     $ 16,576,196     $ 16,576,196  
                         
(1) Original cost does not reflect fair value adjustments, which have been realized through the statements of operations and comprehensive income (loss).