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Loans, Allowance for Credit Losses and Credit Quality TDR on Financing Receivables Post Modification (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring, Postmodification | $ 67 | [1] | $ 0 | [1] | $ 67 | $ 18,301 | [1]
Combination rate and maturity |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring, Postmodification | 0 |  | 0 |  | 0 | 14,148 |
Extended Maturity [Member] |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |  |  |  |
Financing Receivable, Troubled Debt Restructuring, Postmodification | $ 67 |  | $ 0 |  | $ 67 | $ 4,153 |
[1] | The pre-modification and post-modification balances represent the legal principal balance of the loan. Activity presented in the table above includes $14.3 million of modifications on existing TDRs occurring during the nine months ended September 30, 2021.

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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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