Investments - Impairments on Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Impairments [Line Items]
Credit impaired	$ (484)	$ (670)
Expected credit losses:
Held-to-maturity securities	(2,167)	0
Net impairment losses recognized in earnings	(4,124)	(9,766)	$ (667)
Available-for-sale securities
Schedule of Impairments [Line Items]
Intent to sell	(299)	(1,759)	(167)
Credit impaired	(484)	(670)	(500)
Total available-for-sale securities	(783)	(2,429)	(667)
Held-to-maturity securities
Expected credit losses:
Held-to-maturity securities	(2,167)	0	0
Agent loans
Expected credit losses:
Net impairment losses recognized in earnings	(355)	0	0
Other loans receivable
Expected credit losses:
Net impairment losses recognized in earnings	$ (819)	$ (7,337)	$ 0