Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Document and Entity Information [Abstract]
Deferred	$ (11,676)	$ (10,365)
Amortized	6,742	10,373
Deferred policy acquisition costs, net	$ (4,934)	$ 8