v2.4.0.6
DERIVATIVE INSTRUMENTS (TABLES)
12 Months Ended
Dec. 31, 2011
DERIVATIVE INSTRUMENTS [Abstract]  
LOCATION AND AMOUNTS OF DERIVATIVE FAIR VALUES ON THE CONSOLIDATED BALANCE SHEET [Table Text Block]
   December 31, 2011 December 31, 2010 
     Derivative Notional Amount  Asset Derivative Fair Value(1)  Liability Derivative Fair Value(1)  Derivative Notional Amount  Asset Derivative Fair Value(1)  Liability Derivative Fair Value(1) 
                     
 Derivatives designated as hedging instruments                 
  Foreign exchange forward contracts$ 540,176 $ 16,519 $ - $ 612,845 $ - $ 13,748 
                     
 Derivatives not designated as hedging instruments                
  Relating to investment portfolio:                  
  Foreign exchange forward contracts  287,711   7,012   1,783   154,990   2,182   746 
                     
  Relating to underwriting portfolio:                  
  Foreign exchange forward contracts$ 955,728   14,644   252 $ 110,564   4,459   492 
                     
  Total derivatives    $ 38,175 $ 2,035    $ 6,641 $ 14,986 
                     
(1) Asset and liability derivatives are classified within other assets and other liabilities on the consolidated balance sheets.
TOTAL UNREALIZED AND REALIZED GAINS (LOSSES) ON DERIVATIVES NOT DESIGNATED AS HEDGES RECORDED IN EARNINGS [Table Text Block]
             
       
 Year ended December 31,  2011  2010  2009 
            
  Foreign exchange forward contracts  $ 11,682 $ 35,886 $ (13,655) 
  Hedged investment portfolio    (16,085)   (30,063)   16,565 
 Hedge ineffectiveness recognized in earnings $ (4,403) $ 5,823 $ 2,910 
             
NET EARNINGS IMPACT OF FAIR VALUE HEDGES [Table Text Block]
The following table provides the total unrealized and realized gains (losses) on derivatives recorded in earnings:
            
    Amount of Gain (Loss) Recognized in Income on Derivative 
  Location of Gain (Loss) Recognized         
  in Income on Derivative 2011  2010  2009 
            
 Derivatives not designated as hedging instruments          
  Relating to investment portfolio:         
  Foreign exchange forward contractsNet realized investment gains (losses)$ 4,431 $ (3,641) $ (1,032) 
            
  Relating to underwriting portfolio:         
  Foreign exchange forward contractsForeign exchange gains (losses)  33,893   9,596   (10,429) 
  Currency collar optionsForeign exchange gains (losses)  267   -   2,428 
  Longevity risk derivativeOther insurance related income (loss)  -   -   (132,595) 
  Catastrophe-related riskOther insurance related income (loss)  -   -   45 
            
  Total $ 38,591 $ 5,955 $ (141,583)