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Loans - Schedule of Loan Assigned Risk Rating within 12 Months of Balance Sheet Date (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | $ 2,505,744 | $ 2,454,853
Pass |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 1,612,205 | 1,572,960
Special Mention |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 19,186 | 13,760
Substandard |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 29,200 | 27,353
Doubtful |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 0 | 0
Pass, Special Mention, Substandard, Doubtful |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 1,660,591 | 1,614,073
Commercial, industrial, and agricultural |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 950,865 | 916,297
Commercial, industrial, and agricultural | Pass |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 922,618 | 889,547
Commercial, industrial, and agricultural | Special Mention |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 10,149 | 10,519
Commercial, industrial, and agricultural | Substandard |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 18,098 | 16,231
Commercial, industrial, and agricultural | Doubtful |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 0 | 0
Commercial mortgages |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 709,726 | 697,776
Commercial mortgages | Pass |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 689,587 | 683,413
Commercial mortgages | Special Mention |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 9,037 | 3,241
Commercial mortgages | Substandard |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | 11,102 | 11,122
Commercial mortgages | Doubtful |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Net loans | $ 0 | $ 0

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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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