Unpaid Losses and Loss Adjustment Expenses - Changes in the Liability for Unpaid Losses and Loss Adjustment Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross reserves - beginning of period	$ 140,996	$ 117,852	$ 139,085	$ 111,270
Less: reinsurance recoverables on unpaid losses	(37,769)	(22,824)	(40,344)	(24,218)
Net reserves - beginning of period	103,227	95,028	98,741	87,052
Add: incurred losses and LAE, net of reinsurance:
Current period	13,541	12,513	38,765	37,813
Prior period	3,130	3,646	18,175	15,634
Total net incurred losses and LAE	16,671	16,159	56,940	53,447
Deduct: loss and LAE payments, net of reinsurance:
Current period	5,634	5,802	13,313	14,102
Prior period	11,456	8,587	39,560	29,599
Total net loss and LAE payments	17,090	14,389	52,873	43,701
Net reserves - end of period	102,808	96,798	102,808	96,798
Plus: reinsurance recoverables on unpaid losses	41,749	23,056	41,749	23,056
Gross reserves - end of period	$ 144,557	$ 119,854	$ 144,557	$ 119,854