INVESTMENTS (DETAILS 6) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule Of Available For Sale Securities [Line Items]
Gross realized gains	$ 59,259	$ 44,487	$ 112,296	$ 103,268
Gross realized losses	(16,938)	(33,253)	(53,080)	(53,822)
Net OTTI recognized in earnings	(1,905)	(5,127)	(2,690)	(6,025)
Change in fair value of investment derivatives	(7,155)	10,128	(12,644)	17,292
Total net realized investment gains	33,261	16,235	43,882	60,713
Fixed Maturities And Short-Term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Gross realized gains	26,650	34,355	60,420	66,986
Gross realized losses	(14,392)	(29,538)	(48,096)	(46,812)
Equity Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Gross realized gains	32,609	10,132	51,876	36,282
Gross realized losses	$ (2,546)	$ (3,715)	$ (4,984)	$ (7,010)