Allowance for Expected Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Allowance For Expected Credit Losses
Premium Receivable, Beginning Balance	$ 0	$ 26
Reinsurance Recoverable, Beginning Balance	30	75
Total Credit Loss Allowances, Beginning Balance	30	101
Premium Receivable, Provision for (reversal of) expected credit losses	1	10
Reinsurance Recoverable, Provision for (reversal of) expected credit losses	6	(21)
Total Provision for (reversal of) expected credit losses	7	(11)
Premium Receivable, Allowance for Credit Loss, Writeoff	(1)	(3)
Reinsurance recoverable, allowance for credit loss, writeoff	0	0
Total Credit Loss Allowance Writeoffs	(1)	(3)
Premium Receivable, Ending Balance	0	33
Reinsurance Recoverable, Ending Balance	36	54
Total Credit Loss Allowances, Ending Balance	$ 36	$ 87