Deferred Policy Acquisition Costs, Deferred Reinsurance, and Deferred Sales Inducements (DSI) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	$ 322,351
Balance, end of period	303,834
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	322,351	$ 351,424
Capitalization	3,194	1,753
Amortization expense	(22,099)	(22,913)
Other	388	0
Balance, end of period	$ 303,834	$ 330,264