Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Document and Entity Information [Abstract]
Deferred, dispositions	$ (8,163)	$ (20,939)	$ (29,327)	$ (45,342)
Amortized	10,960	21,684	36,673	45,971
Net	$ 2,797	$ 745	$ 7,346	$ 629