Loans and the Allowance for Loan Losses (Details) - Purchase credit impaired loans - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
Total carrying amount	$ 13,517	$ 6,553
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total carrying amount	3,878	5,452
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total carrying amount	5,555	1,101
Residential Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
Total carrying amount	$ 4,084