Unpaid Losses and Loss Adjustment Reserve - Unpaid Losses and LAE Gross (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Reserve for unpaid losses and LAE, beginning balance	$ 100,632
Reinsurance recoverable on losses and LAE, beginning balance	(25,772)	$ (76,999)
Reserve for unpaid losses and LAE reserve, net of reinsurance recoverables, beginning balance	23,633
Add provisions (reductions) for losses and LAE occurring in:
Current year	182,010
Prior years	1,486
Net incurred losses and LAE during the current year	183,496
Deduct payments for losses and LAE occurring in:
Current year	(85,481)
Prior years	(17,645)
Net claim and LAE payments during the current year	(103,126)
Reserve for unpaid losses and LAE, net of reinsurance recoverable, ending balance	104,003
Reinsurance recoverable on losses and LAE, ending balance	25,772
Reserve for unpaid losses and LAE, ending balance	$ 129,775