Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Credit losses recognized in earnings on fixed maturity securities
Credit Losses Recognized In Earnings, BOP	$ 1,800	$ 3,381
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(1,673)	(1,614)
Increases due to the passage of time on previously recorded credit losses	0	27
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected	(8)	(68)
Credit Losses Recognized In Earnings, EOP	$ 119	$ 1,726