Investments - Impairments on Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule of Impairments [Line Items]
Credit impaired	$ 79	$ 22	$ 243	$ 223
Expected credit losses:
Held-to-maturity securities	0	0	(2,167)	0
Net impairment losses recognized in earnings	(388)	(171)	(3,065)	(1,804)
Available-for-sale securities
Schedule of Impairments [Line Items]
Intent to sell	(124)	(149)	(298)	(1,581)
Credit impaired	(79)	(22)	(243)	(223)
Total available-for-sale securities	(203)	(171)	(541)	(1,804)
Held-to-maturity securities
Expected credit losses:
Held-to-maturity securities	0	0	(2,167)	0
Other loans receivable
Expected credit losses:
Net impairment losses recognized in earnings	$ (185)	$ 0	$ (357)	$ 0