Quarterly report pursuant to Section 13 or 15(d)

Allowance for Loan and Lease Losses - Summary of TDRs Includes Newly Designated TDRs and Modifications to Existing TDRs (Details)

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Allowance for Loan and Lease Losses - Summary of TDRs Includes Newly Designated TDRs and Modifications to Existing TDRs (Details)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
USD ($)
Contract
Sep. 30, 2019
USD ($)
Contract
Sep. 30, 2020
USD ($)
Contract
Sep. 30, 2019
USD ($)
Contract
Dec. 31, 2019
Contract
Financing Receivable Modifications [Line Items]          
Number of contracts | Contract     19   10
Commercial and Industrial Loans          
Financing Receivable Modifications [Line Items]          
Number of contracts | Contract   1 5 3  
Pre-Modification Outstanding Recorded Investment   $ 13 $ 444 $ 141  
Post-Modification Outstanding Recorded Investment   $ 13 444 141  
Related Allowance     $ 332 $ 90  
Municipal and Other Loans          
Financing Receivable Modifications [Line Items]          
Number of contracts | Contract 1   1    
Pre-Modification Outstanding Recorded Investment $ 62   $ 62    
Post-Modification Outstanding Recorded Investment $ 62   $ 62