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Schedule I - Summary Of Investments - Other Than Investments In Related Parties
12 Months Ended
Dec. 31, 2015
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, 2015
           
             
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
 
$
805,273
   
$
816,877
   
$
816,877
 
State, municipalities and political subdivisions
   
669,945
     
703,075
     
703,075
 
Foreign government securities
   
1,256,983
     
1,259,181
     
1,259,181
 
Foreign corporate securities
   
2,677,589
     
2,718,351
     
2,718,351
 
Public utilities
   
276,627
     
281,937
     
281,937
 
All other corporate bonds
   
4,987,321
     
4,965,955
     
4,965,955
 
Mortgage - backed securities:
                       
Commercial
   
264,924
     
266,299
     
266,299
 
Agency residential
   
2,313,265
     
2,320,524
     
2,320,524
 
Non-agency residential
   
893
     
898
     
898
 
Redeemable preferred stock
   
23,386
     
24,197
     
24,197
 
Total fixed maturities-available for sale
   
13,276,206
     
13,357,294
     
13,357,294
 
Fixed maturities - available for sale at fair value (1)
   
2,202
     
2,102
     
2,102
 
Equity securities - available for sale at market value
   
122,271
     
108,940
     
108,940
 
Equity securities - available for sale at fair value (1)
   
1,108,295
     
1,337,733
     
1,337,733
 
Short-term investments
   
1,795,455
     
1,795,455
     
1,795,455
 
Other invested assets
   
786,994
     
786,994
     
786,994
 
Cash
   
283,658
     
283,658
     
283,658
 
                         
Total investments and cash
 
$
17,375,081
   
$
17,672,176
   
$
17,672,176
 
                         
(1)  Original cost does not reflect fair value adjustments, which have been realized through the statements of operations and comprehensive income (loss).