Investments (Major Categories of Investment Gains and Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Gain (Loss) on Investments [Line Items]
Net realized investment gains	$ 88	$ 27
Fixed Maturities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains	90	23
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains	0	0
Trading Securities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains	0	0
Other, Principally Real Estate [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains	(2)	4
Other-than-Temporary Impairment [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains	$ 0	$ 0