Investments Fixed Maturities by Contractual Maturity Periods (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 10,642
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	10,803
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	37,897
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	38,047
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	2,151
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	2,165
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	8,676
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	8,749
Available-for-sale Securities, Amortized Cost Basis	59,366
Available-for-sale Securities, Debt Securities	$ 59,764	$ 56,195