Securities (Summary of Disaggregated Net Losses on Equity Securities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Securities [Abstract]
Net (losses) gains recognized during the period on equity securities	$ (307)	$ 778	$ (4)	$ 780
Less: Net gains recognized during the period on equity securities sold during the period				40
Realized and unrealized (losses) gains on equity investments still held at the reporting date	$ (307)	$ 778	$ (4)	$ 820