Deferred Policy Acquisition Costs - Reconciliation of DAC (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Deferred Policy Acquisition Cost [Line Items]
Total DAC, net	$ 3,319,844	$ 3,188,502
Term Life [Member]
Deferred Policy Acquisition Cost [Line Items]
Total DAC, net	3,237,144	3,106,148	$ 2,869,812
Segregated Funds (Canada) [Member]
Deferred Policy Acquisition Cost [Line Items]
Total DAC, net	63,964	62,341	$ 65,411
Other [Member]
Deferred Policy Acquisition Cost [Line Items]
Total DAC, net	$ 18,736	$ 20,013