Loans and Leases - Acquired Credit Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Outstanding principal balance	$ 348	$ 893
Carrying amount	264	695
Reserve for loan losses	0	0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Beginning of period	0	11
Reclassification from nonaccretable discount	329	582
Accretable yield amortized to interest income	(329)	(593)
End of period	$ 0	$ 0