Unpaid Losses and Settlement Expenses (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Liquor Liability And Business Owners Liability [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Increase in net unpaid losses and settlement expense	$ 1,464,000
Liquor Liability And Umbrella Liability [Member]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Increase in net unpaid losses and settlement expense		$ 2,076,000