Deferred Policy Acquisition Costs (Deferred Amortized Policy Acquisition Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Document and Entity Information [Abstract]
Deferred, additions		$ 6,306		$ 16,671
Deferred, disposition	$ (35,871)		$ (47,547)
Amortized	34,788	(8,242)	41,530	(18,615)
Net	$ (1,083)	$ (1,936)	$ (6,017)	$ (1,944)