Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Document and Entity Information [Abstract]
Deferred, dispositions	$ (15,103)	$ (15,981)
Amortized	16,557	13,388
Net	$ 1,454	$ (2,593)