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Loans and the Allowance for Loan Losses (Details) - Loans receivable on nonaccrual status - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
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Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 64,580 | $ 49,481
Commercial Portfolio Segment [Member] |  |
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 30,584 | 31,455
Commercial Real Estate Portfolio Segment [Member] |  |
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 9,739 | 8,338
Commercial Construction Portfolio Segment [Member] |  |
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 18,205 | 6,773
Residential Real Estate Portfolio Segment [Member] |  |
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 6,050 | 2,915
Consumer Portfolio Segment [Member] |  |
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 2 |

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