Summary of Significant Accounting Policies (Schedule of Other, Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Interest and dividend income	$ 8,627	$ 1,920	$ 5,621
Post-retirement benefit insurance credits	880	356	355
Change in derivative associated with guarantee	2,646	0	0
Expense related to Tax Disaffiliation indemnification	(589)	0	0
Net (losses) gains recognized on investment securities	(7,980)	9,384	1,818
Net periodic benefit cost other than the service costs	(944)	(975)	(3,618)
Credit loss expense	0	0	(12,828)
Other income	106	2	6
Other, net	$ 2,746	$ 10,687	$ (8,646)