Investments - Impairments on Investments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Schedule of Impairments [Line Items]
Credit impaired	$ (365)	$ (164)
Expected credit losses:
Held-to-maturity securities	0	(2,167)
Net impairment losses recognized in earnings	(914)	(2,677)
Total available-for-sale securities
Schedule of Impairments [Line Items]
Intent to sell	0	(174)
Credit impaired	(365)	(164)
Total available-for-sale securities	(365)	(338)
Held-to-maturity securities
Expected credit losses:
Held-to-maturity securities	0	(2,167)
Agent loans
Expected credit losses:
Net impairment losses recognized in earnings	(164)	0
Other loans receivable
Expected credit losses:
Net impairment losses recognized in earnings	$ (385)	$ (172)