Realized And Unrealized Investment Gains Realized and Unrealized Investment Gains (Loss) (Realized and unrealized investmetns gains(losses)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Fixed maturity securities, gains	$ 1,341	$ 13,803	$ 8,178	$ 17,263
Fixed maturity securities, losses	(2,171)	(2,208)	(2,810)	(3,727)
Equity securities available for sale	(21)	9,729	9,639	39,310
Investment funds	70,648	50,919	92,821	95,675
Real Estate Realized Gain (Loss) on Disposal	0	15	0	85,659
Other	(3,378)	0	5,192	0
Realized Gain (Loss) on Investments, Including Equity Method Investments, Excluding Other than Temporary Impairments and Allowances	66,419	72,258	113,020	234,180
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net	(12,515)	0	(12,515)	0
Net investment gains	53,904	72,258	100,505	234,180
Income tax expense	(18,866)	(25,290)	(35,177)	(81,963)
Total after-tax realized investment gains	$ 35,038	$ 46,968	$ 65,328	$ 152,217