Deferred Policy Acquisition Costs, Deferred Reinsurance, and Deferred Sales Inducements (DSI) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	$ 322,351
Balance, end of period	316,062
Variable Annuities
Movement in Deferred Sales Inducements [Roll Forward]
Balance, beginning of period	322,351	$ 351,424
Capitalization	1,018	1,253
Amortization expense	(7,307)	(7,784)
Balance, end of period	$ 316,062	$ 344,893