Segment Information (Schedule of Additional Business Segment Information) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 1,470,265	$ 1,536,702
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	1,470,265	1,536,702
Commercial Lines Segment [Member] \| Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	212,468	219,636
Personal Segment [Member] \| Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	87,300	110,807
Runoff Segment [Member] \| Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	218,286	349,850
Corporate [Member] \| Continuing Operations [Member]
Segment Reporting Information [Line Items]
Assets	$ 952,211	$ 856,409

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details