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Loans - Impaired Financing Receivables with Related and not Related Allowances (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
With no related allowance recorded: |  |
Average Recorded Investment, Total | $ 25,825 | $ 17,366
Interest Income Recognized, Total | 259 | 157
Cash Basis Interest Recognized, Total | 259 | 157
Commercial, industrial and agricultural |  |
With an allowance recorded: |  |
Average Recorded Investment | 4,272 | 2,158
Interest Income Recognized | 17 | 38
Cash Basis Interest Recognized | 17 | 38
With no related allowance recorded: |  |
Average Recorded Investment | 7,161 | 3,376
Interest Income Recognized | 42 | 54
Cash Basis Interest Recognized | 42 | 54
Commercial mortgages |  |
With an allowance recorded: |  |
Average Recorded Investment | 4,331 | 7,267
Interest Income Recognized | 37 | 40
Cash Basis Interest Recognized | 37 | 40
With no related allowance recorded: |  |
Average Recorded Investment | 9,598 | 4,065
Interest Income Recognized | 158 | 18
Cash Basis Interest Recognized | 158 | 18
Residential real estate |  |
With an allowance recorded: |  |
Average Recorded Investment | 463 | 0
Interest Income Recognized | 5 | 0
Cash Basis Interest Recognized | 5 | 0
With no related allowance recorded: |  |
Average Recorded Investment | 0 | 500
Interest Income Recognized | 0 | 7
Cash Basis Interest Recognized | $ 0 | $ 7

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524 + Details
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