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Loans, Allowance for Credit Losses and Credit Quality Financing Receivable, Allowance for Credit Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021 | Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | $ 144,319 | [1] |  |  | $ 144,319 | [1] |  |  | $ 144,518 | $ 146,922 | $ 107,549 | $ 113,392
Allowance for Loan and Lease Losses, Write-offs |  | (544) |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 345 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | 0 |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance |  | 144,319 | [1] | $ 102,357 | [1] | 144,319 | [1] | $ 102,357 | [1] |  | 146,922 |  |
Release of provision for credit losses |  | 0 |  | (5,000) |  | (2,000) |  | (7,500) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 289 |  | 647 |  | 632 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | (481) |  | (1,250) |  | (4,167) |  |  |  |  |
Commercial And Industrial [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 14,107 | [1] |  |  | 14,107 | [1] |  |  | 14,169 | 14,402 | 20,207 | 21,086
Allowance for Loan and Lease Losses, Write-offs |  | 0 |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 29 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | (91) |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 14,107 |  | 17,032 |  | 14,107 |  | 17,032 |  |  |  |  |
Release of provision for credit losses |  |  |  | (3,068) |  | (337) |  | (680) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 35 |  | 42 |  | 99 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | (142) |  | 0 |  | (3,473) |  |  |  |  |
Commercial Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 83,456 | [1] |  |  | 83,456 | [1] |  |  | 84,436 | 83,486 | 44,348 | 45,009
Allowance for Loan and Lease Losses, Write-offs |  | 0 |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 0 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | (980) |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 83,456 |  | 44,325 |  | 83,456 |  | 44,325 |  |  |  |  |
Release of provision for credit losses |  |  |  | (23) |  | (33) |  | (741) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 0 |  | 3 |  | 57 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | 0 |  | 0 |  | 0 |  |  |  |  |
Construction Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 11,710 | [1] |  |  | 11,710 | [1] |  |  | 11,867 | 12,316 | 5,268 | 5,397
Allowance for Loan and Lease Losses, Write-offs |  | 0 |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 0 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | (157) |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 11,710 |  | 4,865 |  | 11,710 |  | 4,865 |  |  |  |  |
Release of provision for credit losses |  |  |  | (403) |  | (606) |  | (532) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 0 |  | 0 |  | 0 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | 0 |  | 0 |  | 0 |  |  |  |  |
Small Business [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 2,784 | [1] |  |  | 2,784 | [1] |  |  | 3,159 | 3,508 | 3,621 | 5,095
Allowance for Loan and Lease Losses, Write-offs |  | (11) |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 33 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | (397) |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 2,784 |  | 3,612 |  | 2,784 |  | 3,612 |  |  |  |  |
Release of provision for credit losses |  |  |  | 22 |  | (724) |  | (1,397) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 4 |  | 59 |  | 15 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | (35) |  | (59) |  | (101) |  |  |  |  |
Residential Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 19,750 | [1] |  |  | 19,750 | [1] |  |  | 18,388 | 14,484 | 12,956 | 14,275
Allowance for Loan and Lease Losses, Write-offs |  | 0 |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 0 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | 1,362 |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 19,750 |  | 12,014 |  | 19,750 |  | 12,014 |  |  |  |  |
Release of provision for credit losses |  |  |  | (942) |  | 5,266 |  | (2,262) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 0 |  | 0 |  | 1 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | 0 |  | 0 |  | 0 |  |  |  |  |
Home Equity Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 11,740 | [1] |  |  | 11,740 | [1] |  |  | 11,750 | 17,986 | 20,716 | 22,060
Allowance for Loan and Lease Losses, Write-offs |  | (98) |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 14 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | 74 |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | 11,740 |  | 20,087 |  | 11,740 |  | 20,087 |  |  |  |  |
Release of provision for credit losses |  |  |  | (605) |  | (6,164) |  | (1,962) |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 45 |  | 40 |  | 58 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | (69) |  | (122) |  | (69) |  |  |  |  |
Consumer - Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Loss |  | 772 | [1] |  |  | 772 | [1] |  |  | $ 749 | $ 740 | $ 433 | $ 470
Allowance for Loan and Lease Losses, Write-offs |  | (435) |  |  |  |  |  |  |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  | 269 |  |  |  |  |  |  |  |  |  |  |
Provision for Loan and Lease Losses |  | 189 |  |  |  |  |  |  |  |  |  |  |
Loans and Leases Receivable, Allowance | [1] | $ 772 |  | 422 |  | 772 |  | 422 |  |  |  |  |
Release of provision for credit losses |  |  |  | 19 |  | 598 |  | 74 |  |  |  |  |
Allowance for Loan and Lease Loss, Recovery of Bad Debts |  |  |  | 205 |  | 503 |  | 402 |  |  |  |  |
Allowance for Loan and Lease Losses, Write-offs |  |  |  | $ (235) |  | $ (1,069) |  | $ (524) |  |  |  |  |
[1] | Balances of accrued interest receivable excluded from amortized cost and the calculation of allowance for credit losses amounted to $39.0 million and $29.9 million as of June 30, 2022 and June 30, 2021, respectively.

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