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Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | $ 21,437 | $ 22,122 | $ 19,704 | $ 19,693
Charge-offs | (3,511) | (813) | (5,087) | (2,249)
Recoveries | 163 | 106 | 378 | 435
Provision (benefit) for loan losses | 2,118 | 1,095 | 5,212 | 4,631
Allowance for loan losses, Ending Balance | 20,207 | 22,510 | 20,207 | 22,510
Commercial, industrial, and agricultural |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 8,108 | 7,143 | 7,341 | 6,160
Charge-offs | (160) | (30) | (160) | (61)
Recoveries | 5 | 3 | 13 | 165
Provision (benefit) for loan losses | 997 | (536) | 1,756 | 316
Allowance for loan losses, Ending Balance | 8,950 | 6,580 | 8,950 | 6,580
Commercial Mortgages |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 9,538 | 10,615 | 7,490 | 9,007
Charge-offs | (2,650) | 0 | (2,652) | 0
Recoveries | 65 | 0 | 66 | 0
Provision (benefit) for loan losses | 30 | 682 | 2,079 | 2,290
Allowance for loan losses, Ending Balance | 6,983 | 11,297 | 6,983 | 11,297
Residential real estate |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 1,403 | 1,900 | 2,156 | 2,033
Charge-offs | (38) | (212) | (282) | (289)
Recoveries | 5 | 55 | 72 | 67
Provision (benefit) for loan losses | 116 | 235 | (460) | 167
Allowance for loan losses, Ending Balance | 1,486 | 1,978 | 1,486 | 1,978
Consumer |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 2,141 | 2,156 | 2,377 | 2,179
Charge-offs | (547) | (469) | (1,609) | (1,610)
Recoveries | 58 | 28 | 132 | 112
Provision (benefit) for loan losses | 693 | 608 | 1,445 | 1,642
Allowance for loan losses, Ending Balance | 2,345 | 2,323 | 2,345 | 2,323
Credit cards |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 87 | 101 | 103 | 120
Charge-offs | (3) | (8) | (55) | (53)
Recoveries | 6 | 3 | 12 | 27
Provision (benefit) for loan losses | 15 | 11 | 45 | 13
Allowance for loan losses, Ending Balance | 105 | 107 | 105 | 107
Overdrafts |  |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Allowance for loan losses, Beginning Balance | 160 | 207 | 237 | 194
Charge-offs | (113) | (94) | (329) | (236)
Recoveries | 24 | 17 | 83 | 64
Provision (benefit) for loan losses | 267 | 95 | 347 | 203
Allowance for loan losses, Ending Balance | $ 338 | $ 225 | $ 338 | $ 225

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- Definition Amount of recovery of financing receivables doubtful of collection that were previously charged off. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=118955255&loc=SL82922352-210448 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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