Loss and Loss Adjustment Expense Reserves (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Loss and Loss Adjustment Expense Reserves
Reserves for losses and LAE at beginning of year	$ 570,651	$ 567,581
Less receivable from reinsurers related to unpaid losses and LAE	(90,667)	(106,311)
Net reserves for losses and LAE at beginning of year	479,984	461,270
Incurred losses and LAE, related to:
Current year	135,578	123,954
Prior years	(12,412)	(12,459)
Total incurred losses and LAE	123,166	111,495
Paid losses and LAE related to:
Current year	57,650	48,084
Prior years	76,135	55,593
Total paid losses and LAE	133,785	103,677
Net reserves for losses and LAE at end of period	469,365	469,088
Plus receivable from reinsurers related to unpaid losses and LAE	90,656	108,178	$ 90,667
Reserves for losses and LAE at end of period	560,021	577,266
Prior years	$ (12,412)	$ (12,459)