Allowance for Loan and Lease Losses (Troubled Debt Restructurings) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2020
USD ($)
loan
Mar. 31, 2019
USD ($)
loan
Dec. 31, 2019
USD ($)
Receivables [Abstract]      
On accrual $ 16,480   $ 17,076
On nonaccrual 5,819   6,104
Total troubled debt restructurings 22,299   $ 23,180
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Recorded investment, at end of period 500 $ 17,600  
Loans with one modification 495 17,617  
Extended maturity      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Loans with one modification 295 6,319  
Combination maturity, principal, interest rate      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Loans with one modification $ 200 $ 11,298  
Originated      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Number of Loans/ Leases | loan 3 10  
Recorded Investment, At Modification $ 497 $ 17,643  
Recorded investment, at end of period 495 17,617  
Specific Allowance for Credit Losses 0 191  
Nonaccrual Loans and Leases $ 295 $ 425  
Defaulted, number of loans/leases | loan 1 6  
Defaulted, recorded investment $ 228 $ 2,102  
Originated | Commercial real estate      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Number of Loans/ Leases | loan 0 1  
Recorded Investment, At Modification $ 0 $ 73  
Recorded investment, at end of period 72  
Specific Allowance for Credit Losses 0 9  
Nonaccrual Loans and Leases $ 0 $ 0  
Defaulted, number of loans/leases | loan 1 1  
Defaulted, recorded investment $ 228 $ 635  
Originated | Commercial      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Number of Loans/ Leases | loan 1 6  
Recorded Investment, At Modification $ 297 $ 16,754  
Recorded investment, at end of period 295 16,730  
Specific Allowance for Credit Losses 0 0  
Nonaccrual Loans and Leases $ 295 $ 0  
Defaulted, number of loans/leases | loan 0 3  
Defaulted, recorded investment $ 0 $ 1,074  
Originated | Equipment financing      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Number of Loans/ Leases | loan 2 3  
Recorded Investment, At Modification $ 200 $ 816  
Recorded investment, at end of period 200 815  
Specific Allowance for Credit Losses 0 182  
Nonaccrual Loans and Leases $ 0 $ 425  
Defaulted, number of loans/leases | loan 0 1  
Defaulted, recorded investment $ 0 $ 52  
Originated | Residential mortgage      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Number of Loans/ Leases | loan   0  
Recorded Investment, At Modification   $ 0  
Recorded investment, at end of period   0  
Specific Allowance for Credit Losses   0  
Nonaccrual Loans and Leases   $ 0  
Defaulted, number of loans/leases | loan   1  
Defaulted, recorded investment   $ 341