Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Credit losses recognized in earnings on fixed maturity securities
Balance, beginning of period	$ 98	$ 103	$ 93	$ 1,800
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(5)	(2)	(13)	(1,679)
Additional credit loss impairments recognized in the current period on securities previously impaired	0		20
Increases due to the passage of time on previously recorded credit losses	0	0	0	0
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected	(1)	(1)	(8)	(21)
Balance, end of period	$ 92	$ 100	$ 92	$ 100