Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Document and Entity Information [Abstract]
Deferred, additions		$ 8,247
Deferred, dispositions	$ (20,939)		$ (45,342)	$ (39,300)
Amortized	21,684	(9,843)	45,971	31,687
Net	$ 745	$ (1,596)	$ 629	$ (7,613)