Investments - Contractual Maturities of Available for Sale Fixed Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Amortized Cost
Due within one year (remaining six months)	$ 9,794
Due within one year	0
Due after one year through five years	87,904
Due after five years through ten years	76,683
Due after ten years	25,261
Mortgage and asset-backed securities	71,210
Amortized Cost	270,852	$ 211,278
Fair Value
Due within one year (remaining six months)	9,882
Due within one year	0
Due after one year through five years	91,674
Due after five years through ten years	81,891
Due after ten years	25,996
Mortgage and asset-backed securities	73,412
Total	$ 282,855	$ 217,151