Segment Information (Schedule of Additional Business Segment Information) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 1,092,922	$ 1,536,702
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	1,092,922	1,536,702
Commercial Lines Segment [Member] | Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	223,302	219,636
Personal Segment [Member] | Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	82,978	110,807
Runoff Segment [Member] | Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	165,639	349,850
Corporate [Member] | Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	$ 621,003	$ 856,409