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, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance, beginning of period	$ 5,550	$ 8,556	$ 7,041	$ 8,729
Credit loss impairments previously recognized on securities which matured, paid down, prepaid or were sold during the period	(37)	(1,022)	(1,173)	(1,155)
Credit loss impairments previously recognized on securities impaired to fair value during the period	0	0	0	0
Credit loss impairments recognized in the current period on securities not previously impaired	0	0	522	0
Additional credit loss impairments recognized in the current period on securities previously impaired	0	44	6	71
Increases due to the passage of time on previously recorded credit losses	139	78	224	155
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected	(11)	(60)	(321)	(204)
Assets transferred to parent and affiliates	0		(658)
Balance, end of period	$ 5,641	$ 7,596	$ 5,641	$ 7,596