Deferred Policy Acquisition Costs, Deferred Reinsurance Losses, Deferred Reinsurance Gains And Deferred Sales Inducements (Balance of and Changes in DSI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Movement in Deferred Sales Inducements [Roll Forward]
Beginning Balance	$ 351,424
Ending Balance	322,351	$ 351,424
Variable Annuties
Movement in Deferred Sales Inducements [Roll Forward]
Beginning Balance	351,424	381,504	$ 414,619
Capitalization	1,243	1,514	676
Amortization expense	(30,316)	(31,625)	(33,791)
Other adjustments		31
Ending Balance	$ 322,351	$ 351,424	$ 381,504