Deferred Policy Acquisition Costs, Deferred Reinsurance Losses, Deferred Reinsurance Gains And Deferred Sales Inducements (Balance of and Changes in Deferred Reinsurance Gain) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	$ 1,492,856	$ 252,736
Amortization	(45,647)	(46,353)
Other adjustments	277,262	1,326,509
Balance, end of period	1,724,471	1,532,892
Lotus Re
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Other adjustments		1,352,000
Variable/Universal Life
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	1,434,958	174,598
Amortization	(36,032)	(43,159)
Other adjustments	0	1,340,312
Balance, end of period	1,398,926	1,471,751
Fixed Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	57,898	78,138
Amortization	(4,406)	(3,194)
Other adjustments	0	(13,803)
Balance, end of period	53,492	61,141
Variable Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	0	0
Amortization	(5,209)	0
Other adjustments	277,262	0
Balance, end of period	$ 272,053	$ 0