Loans, Troubled Debt Restructurings Performing and Nonaccrual (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	$ 25,303	$ 26,041
Nonaccrual Restructured Loans(a)	25,362	22,494
PPP
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	0	0
Nonaccrual Restructured Loans(a)	0	0
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	16,321	16,678
Nonaccrual Restructured Loans(a)	7,968	7,376
Commercial real estate — owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	1,441	1,676
Nonaccrual Restructured Loans(a)	0	0
Commercial real estate — investor
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	114	293
Nonaccrual Restructured Loans(a)	395	0
Real estate construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	313	298
Nonaccrual Restructured Loans(a)	173	179
Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	4,178	3,955
Nonaccrual Restructured Loans(a)	15,401	13,035
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	1,717	1,896
Nonaccrual Restructured Loans(a)	1,424	1,904
Other consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Performing Restructured Loans	1,219	1,246
Nonaccrual Restructured Loans(a)	$ 0	$ 1