Investments (Allowance for Losses) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014
Allowance For Losses On Commermcial Mortgage And Other Loans [Line Items]
Allowance for Losses, Beginning Balance	$ 482	[1]	$ 1,256
Addition To / (Release of) Allowance For Losses	(75)		(774)
Allowance for Losses, Ending Balance	407	[1]	482	[1]
Agricultural Property Loans [Member]
Allowance For Losses On Commermcial Mortgage And Other Loans [Line Items]
Allowance for Losses, Ending Balance	$ 100		$ 100

[1] Agricultural loans represent less than $0.1 million of the ending allowance at both March 31, 2015 and December 31, 2014.