Investments (Major Categories of Investment Gains and Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	$ 142	$ 88
Fixed Maturities [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	142	90
Other, Principally Real Estate [Member]
Gain (Loss) on Investments [Line Items]
Net realized investment gains (losses)	$ 0	$ (2)