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Loans, Allowance for Credit Losses and Credit Quality - Finance Receivable, Nonaccrual (Details) - USD ($) | Mar. 31, 2023 | Dec. 31, 2022
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Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance | [1] | $ 53,196,000 | $ 51,809,000
Financing Receivable, Nonaccrual, No Allowance | [1] | 3,016,000 | 3,072,000
Financing Receivable, Nonaccrual | [1] | 56,212,000 | 54,881,000
TDRs on nonaccrual |  |  | 11,520,000
Commercial And Industrial [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 26,045,000 | 26,395,000
Financing Receivable, Nonaccrual, No Allowance |  | 298,000 | 298,000
Financing Receivable, Nonaccrual |  | 26,343,000 | 26,693,000
Commercial Real Estate [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 15,324,000 | 12,961,000
Financing Receivable, Nonaccrual, No Allowance |  | 2,714,000 | 2,769,000
Financing Receivable, Nonaccrual |  | 18,038,000 | 15,730,000
Small Business [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 238,000 | 99,000
Financing Receivable, Nonaccrual, No Allowance |  | 4,000 | 5,000
Financing Receivable, Nonaccrual |  | 242,000 | 104,000
Residential Real Estate [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 8,178,000 | 8,479,000
Financing Receivable, Nonaccrual, No Allowance |  | 0 |
Financing Receivable, Nonaccrual |  | 8,178,000 | 8,479,000
Home Equity Loan [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 3,282,000 | 3,400,000
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | 3,282,000 | 3,400,000
Consumer - Other [Member] |  |  |
Financing Receivable, Nonaccrual [Line Items] |  |  |
Finance Receivable, Nonaccrual, with allowance |  | 129,000 | 475,000
Financing Receivable, Nonaccrual, No Allowance |  | 0 | 0
Financing Receivable, Nonaccrual |  | $ 129,000 | $ 475,000
[1] | included $11.5 million of nonaccruing troubled debt restructures ("TDRs").

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- Definition Finance Receivable, Nonaccrual, with allowance + References No definition available. + Details
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- Definition Troubled Debt Restructurings recorded investment that are on nonaccrual status as of the balance sheet date. + References No definition available. + Details
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- Definition Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 + Details
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