Summary of Investments (Unrealized Appreciation) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Investments [Abstract]
Available-for-sale fixed maturities	$ (29,009)	$ 56,861
Available-for-sale equity securities	(1,802)	9,148
Deferred policy acquisition costs	4,797	(17,921)
Income tax effect	9,105	(16,831)
Total change in net unrealized investment appreciation, net of tax	$ (16,909)	$ 31,257