Loans, Allowance for Credit Losses, and Asset Quality Information (Changes in Recorded Investment and Accretable Yield of PCI Loans) (Details) - Purchased Credit Impaired Loans - PCI Loans, Accretable Discount $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at beginning of period	$ 4,149
Accretion	(567)
Reclassification from (to) nonaccretable difference	304
Other, net	(453)
Balance at end of period	$ 3,433