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	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	$ 255,113	$ 292,893
Amortization expense	(27,958)	(28,633)
Other	10	(8)
Balance, end of period	227,165	264,252
Variable Annuities
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	194,110	223,515
Amortization expense	(22,230)	(22,283)
Other	10	(8)
Balance, end of period	171,890	201,224
Term Life
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance, beginning of period	61,003	69,378
Amortization expense	(5,728)	(6,350)
Other	0	0
Balance, end of period	$ 55,275	$ 63,028