Certain Long-Duration Contracts with Guarantees (Sales Inducements) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Movement in Deferred Sales Inducements [Roll Forward]
Beginning Balance	$ 374,649	$ 0
Capitalization	675	167
Amortization - Impact of assumption and experience unlocking and true-ups	(44,422)	16,286
Amortization - All Other	(61,640)	(37,737)
Change in unrealized investment gains and losses	6,312	7,669
Ending Balance	$ 275,574	374,649
Other		$ 388,264