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Loans, Allowance for Credit Losses, and Asset Quality Information (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
PPP loans approved and funded		$ 155,500		$ 240,500
Unamortized net deferred loan fees		4,782	$ 6,848	3,698
Unamortized discount on loans acquired		5,300
Payments that exceeded carrying amount of PCI loans			414
Loan discount accretion income			341
Additional loan interest income			59
Recovery			14
Interest income on restructured loans	$ 1,100
Loans, gross		4,786,846	4,776,911	4,735,013
Allowance for loan losses	65,849	65,022	42,342	52,388	$ 24,498	$ 21,398
Special Mention Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans, gross		39,600		61,260
Classified
Loans and Leases Receivable Disclosure [Line Items]
Loans, gross		56,200
Consumer loans
Loans and Leases Receivable Disclosure [Line Items]
Loans, gross		53,928	51,161	53,955
Allowance for loan losses	2,297	2,363	$ 1,223	1,478	$ 1,015	$ 972
Consumer loans | Special Mention Loans
Loans and Leases Receivable Disclosure [Line Items]
Loans, gross		3
Consumer loans | Classified
Loans and Leases Receivable Disclosure [Line Items]
Loans, gross		$ 346
Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Threshold percentage to write-off nonaccrual loans		90.00%
Hotel | Minimum
Loans and Leases Receivable Disclosure [Line Items]
Threshold percentage to write-off nonaccrual loans		10.00%
Hotel | Maximum
Loans and Leases Receivable Disclosure [Line Items]
Threshold percentage to write-off nonaccrual loans		25.00%
Non Real Estate
Loans and Leases Receivable Disclosure [Line Items]
Threshold percentage to write-off nonaccrual loans		75.00%
Real estate – mortgage – residential (1-4 family) first mortgages
Loans and Leases Receivable Disclosure [Line Items]
Presold mortgages in process of settlement		$ 2,600		1,900
Unfunded Loan Commitment
Loans and Leases Receivable Disclosure [Line Items]
Allowance for loan losses	$ 582	10,025		600
SBA PPP loans
Loans and Leases Receivable Disclosure [Line Items]
Unamortized net deferred loan fees		6,200		6,000
SBA Loans
Loans and Leases Receivable Disclosure [Line Items]
Remaining unaccreted discount		$ 7,000		7,300
Purchased Non-Impaired Loans
Loans and Leases Receivable Disclosure [Line Items]
Remaining unaccreted discount				$ 7,900

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