Deferred Policy Acquisition Costs, Deferred Reinsurance Losses, Deferred Reinsurance Gains And Deferred Sales Inducements (Balance of and Changes in DSI) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	$ 351,424
Balance, end of period	330,264
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	351,424	$ 381,504
Capitalization	1,753	2,053
Amortization expense	(22,913)	(23,881)
Other	0	(2)
Balance, end of period	$ 330,264	$ 359,674