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Loans, net and allowance for credit losses - Major Classification of Loans by Past Due Status (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | $ 2,870,969 |
Loans |  | $ 2,730,116
Loans > 90 Days and Accruing | 700 | 748
Financial Assets, Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 5,655 | 3,986
30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,884 | 2,091
60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 2,061 | 367
Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,710 | 1,528
Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 2,865,314 | 2,726,130
Commercial |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 404,245 |
Loans |  | 433,048
Loans > 90 Days and Accruing | 60 |
Commercial | Financial Assets, Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 165 | 261
Commercial | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 57 | 137
Commercial | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 5 | 38
Commercial | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 103 | 86
Commercial | Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 404,080 | 432,787
Municipal |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 176,935 |
Loans |  | 166,210
Municipal | Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 176,935 | 166,210
Commercial real estate |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,846,350 |
Loans |  | 1,709,827
Commercial real estate | Financial Assets, Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 2,052 | 438
Commercial real estate | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due |  | 102
Commercial real estate | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,660 | 2
Commercial real estate | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 392 | 334
Commercial real estate | Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,844,298 | 1,709,389
Residential real estate |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 357,647 |
Loans |  | 330,728
Loans > 90 Days and Accruing | 640 | 748
Residential real estate | Financial Assets, Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 2,093 | 2,278
Residential real estate | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,032 | 1,162
Residential real estate | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 20 | 128
Residential real estate | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,041 | 988
Residential real estate | Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 355,554 | 328,450
Consumer |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 85,792 |
Loans |  | 90,303
Consumer | Financial Assets, Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 1,345 | 1,009
Consumer | 30-59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 795 | 690
Consumer | 60-89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 376 | 199
Consumer | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | 174 | 120
Consumer | Financial Assets, Not Past Due |  |
Financing Receivable, Recorded Investment, Past Due. |  |
Total Due | $ 84,447 | $ 89,294

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
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- Definition Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (b) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
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