Securities (Schedule of Amounts from Sales of Securities) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Gain (Loss) on Securities [Line Items]
Proceeds from sales		$ 0	$ 11,877	$ 0
Gross realized gains		0	0	0
Gross realized losses		0	(53)	0
Net realized losses on securities	[1]	$ 0	$ (53)	$ 0

[1] As reported in the Consolidated Statements of Income.