Securities Securities (Schedule of Amounts from Sales of Securities) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Gain (Loss) on Securities [Line Items]
Proceeds from sales		$ 11,877	$ 0	$ 0
Gross realized gains		0	0	0
Gross realized losses		(53)	0	0
Net realized losses on securities	[1]	$ (53)	$ 0	$ 0

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