Future Policy Benefits - Schedule of Reconcile LFPB (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Liability for Future Policy Benefit, Activity [Line Items]
Future policy benefits	$ 6,436,332	$ 6,742,025
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Future policy benefits	6,237,802	6,531,082
Other
Liability for Future Policy Benefit, Activity [Line Items]
Future policy benefits	198,530	210,943
Term Life and Other
Liability for Future Policy Benefit, Activity [Line Items]
Future policy benefits	$ 6,436,332	$ 6,742,025