Investments, Part II (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Carrying Value [Abstract]
Due in one year or less	$ 0
Due after one year through five years	8,892
Due after five years through ten years	52,685
Due after ten years	122,054
Varying maturities	1,119
Totals	184,750	230,508
Amortized Cost [Abstract]
Due in one year or less	0
Due after one year through five years	8,241
Due after five years through ten years	51,519
Due after ten years	117,164
Varying maturities	994
Totals	$ 177,918