Loss and Loss Adjustment Expense Reserves (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at beginning of period	$ 73,438	$ 57,093
Less reinsurance recoverable	0	(33,941)
Net balance at beginning of period	73,438	23,152
Incurred related to:
Total incurred	22,060	12,263
Paid related to:
Current year	8,035	695
Prior years	14,865	(18,200)
Total paid	22,900	(17,505)
Net balance at end of period	72,508	52,887
Plus reinsurance recoverable	(4,408)	(8,694)
Balance at end of period	76,916	61,581
Property, Liability and Casualty Insurance Product Line
Incurred related to:
Current year	21,874	9,566
Prior years	96	2,664
Total incurred	$ 21,970	$ 12,230