Deferred Policy Acquisition Costs, Deferred Reinsurance Losses, Deferred Reinsurance Gains And Deferred Sales Inducements (Balance of and Changes in Deferred Reinsurance Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 292,893	$ 333,003	$ 362,347
Amortization expense	(37,777)	(40,105)	(24,353)
Other	(1)	(5)	(4,991)
Balance, end of period	255,115	292,893	333,003
Variable Annuties
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	223,515	254,577	274,415
Amortization expense	(29,403)	(31,057)	(14,847)
Other	(1)	(5)	(4,991)
Balance, end of period	194,111	223,515	254,577
Term Life
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	69,378	78,426	87,932
Amortization expense	(8,374)	(9,048)	(9,506)
Other	0	0	0
Balance, end of period	$ 61,004	$ 69,378	$ 78,426