v2.4.0.8
INVESTMENTS (DETAILS 5) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Net Investment Income [Line Items]        
Gross investment income (loss) $ 91,147 $ 81,007 $ 207,474 $ 203,936
Investment expenses (8,035) (6,558) (15,455) (13,464)
Net investment income 83,112 74,449 192,019 190,472
Fixed Maturities [Member]
       
Net Investment Income [Line Items]        
Gross investment income (loss) 74,503 76,544 144,185 156,181
Other Investments [Member]
       
Net Investment Income [Line Items]        
Gross investment income (loss) 11,848 (2,304) 55,279 38,116
Equity Securities [Member]
       
Net Investment Income [Line Items]        
Gross investment income (loss) 3,134 5,071 4,548 6,180
Cash And Cash Equivalents [Member]
       
Net Investment Income [Line Items]        
Gross investment income (loss) 1,265 1,663 2,533 3,271
Short-term Investments [Member]
       
Net Investment Income [Line Items]        
Gross investment income (loss) $ 397 $ 33 $ 929 $ 188