Reserves for Losses and Loss Adjustment Expenses (Activity in the Reserves for Unpaid Losses and Loss Adjustment Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Beginning balance	$ 816,681	$ 789,768
Reinsurance Recoverables For Reserved Claims	420,693	387,915	$ 357,200
Net balance ending	428,766	432,568
Incurred related to:
Current year	117,644	151,603
Prior years	112,300	6,000
Total incurred	323,499	275,244
Paid related to:
Total paid	292,089	279,046
Net ending balance	460,176	428,766	432,568
Reinsurance Recoverables For Reserved Claims	420,693	387,915	357,200
Ending balance	880,869	816,681	$ 789,768
Continuing Operations
Incurred related to:
Current year	117,644	151,603
Prior years	91,526	1,559
Total incurred	209,170	153,162
Paid related to:
Current year	63,119	77,916
Prior years	121,599	109,211
Total paid	184,718	187,127
Discontinued Operations
Incurred related to:
Current year	93,562	117,600
Prior years	20,767	4,482
Total incurred	114,329	122,082
Paid related to:
Current year	21,521	14,394
Prior years	85,850	77,525
Total paid	$ 107,371	$ 91,919