Allowance for Expected Credit Losses, Reinsurance Recoverables (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Reinsurance Recoverables, Net of Allowance for Expected Credit Losses [Abstract]
Balance, beginning of period	$ 22,496	$ 22,261	$ 21,103	$ 25,913
Balance, end of period	21,600	21,839	21,600	21,839
Allowance for Expected Credit Losses [Abstract]
Balance, beginning of period	54	66	61	0
Current period change for estimated uncollectible reinsurance	(1)	(2)	(8)	(11)
Write-offs of uncollectible reinsurance recoverables	0	0	0	0
Balance, end of period	$ 53	64	$ 53	64
ASU 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Allowance for Expected Credit Losses [Abstract]
Balance, beginning of period		0
Balance, end of period		$ 75		$ 75