Unpaid Losses and Loss Adjustment Expenses (Schedule of liability for unpaid losses and loss adjustment expenses) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Liability for Unpaid Claims and Claims Adjustment Expense, Activity in Liability [Abstract]
Liability for unpaid losses and LAE	$ 105,750	$ 93,250
Reinsurance recoverables on losses	8,710	4,045
Net balance at beginning of period	97,040	89,205
Acquired unpaid losses and LAE related to:
Current year
Prior years		8,568
Total incurred		8,568
Incurred related to:
Current year	172,443	140,890
Prior years	(6,894)	(4,268)
Total Incurred	165,549	136,622
Paid related to:
Current year	86,251	65,234
Prior years	39,440	47,914
Total paid	125,691	113,148
Liability for unpaid losses and LAE	179,576	134,803
Reinsurance recoverables on losses	42,678	13,556
Net balance at end of period	$ 136,898	$ 121,247