Liability For Future Policy Benefits (Revenue and Interest Expense) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Benefit Reserves
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	$ 1,413,192	$ 1,382,995
Interest expense	296,094	292,167
Benefit Reserves | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,376,032	1,352,988
Interest expense	288,265	285,415
Benefit Reserves | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Benefit Reserves | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	37,160	30,007
Interest expense	7,829	6,752
Deferred profit liability
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	725	505
Deferred profit liability | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	0	0
Deferred profit liability | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	0	0
Deferred profit liability | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	725	505
Additional insurance reserves
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,177,119	1,349,352
Interest expense	439,567	397,904
Additional insurance reserves | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Additional insurance reserves | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,136,423	1,349,352
Interest expense	438,236	397,904
Additional insurance reserves | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	40,696	0
Interest expense	1,331	0
Deferred Profit Liability Netting
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	(71)	(5,161)
Deferred Profit Liability Netting | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Deferred Profit Liability Netting | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Deferred Profit Liability Netting | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	(71)	(5,161)
Revenues
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	2,590,240	2,727,186
Revenues | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,376,032	1,352,988
Revenues | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,136,423	1,349,352
Revenues | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	77,785	24,846
Interest Expense
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	736,386	690,576
Interest Expense | Term Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	288,265	285,415
Interest Expense | Variable/Universal Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	438,236	397,904
Interest Expense | Fixed Annuities
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	$ 9,885	$ 7,257