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SCHEDULE IV - SUPPLEMENTARY REINSURANCE INFOMRATION
 12 Months Ended
Dec. 31, 2011
SUPPLEMENTARY REINSURANCE INFORMATION [Abstract]  
SUPPLEMENTARY REINSURANCE INFORMATION [Text Block]
AXIS CAPITAL HOLDINGS LIMITED
SUPPLEMENTARY REINSURANCE INFORMATION
YEARS ENDED DECEMBER 31, 2011, 2010 AND 2009

                 
   DIRECT CEDED TO ASSUMED    PERCENTAGE  
   GROSS OTHER FROM OTHER  NET  OF AMOUNT  
 (in thousands) PREMIUM COMPANIES COMPANIES  AMOUNT ASSUMED TO NET 
                 
 2011 $ 1,696,600 $ 676,719 $ 2,399,553 $ 3,419,434 70.2% 
 2010   1,619,880   602,996   2,130,656   3,147,540 67.7% 
 2009   1,516,031   770,866   2,071,264   2,816,429 73.5%