Background and Basis of Presentation (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($) store segment
Entity Location [Line Items]
Number of Reportable Segments | segment	1
Gain (Loss) on Disposition of Business | $	$ 0.7
Deposits Sold | $	$ 25.7
City National
Entity Location [Line Items]
Number of Stores	94
WEST VIRGINIA | City National
Entity Location [Line Items]
Number of Stores	58
KENTUCKY | City National
Entity Location [Line Items]
Number of Stores	19
VIRGINIA | City National
Entity Location [Line Items]
Number of Stores	13
OHIO | City National
Entity Location [Line Items]
Number of Stores	4