Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Deferred	$ (10,616)	$ (6,978)	$ (21,713)	$ (20,716)
Amortized	10,375	7,091	21,571	20,458
Net	$ (241)	$ 113	$ (142)	$ (258)