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Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Summary of Loans [Abstract] |  |
Net Loans | $ 7,498,885 | $ 7,136,098
Deferred loan origination costs, net | 9,400 | 35,300
Residential loans held for sale | 1,100 | 11,500
Loans serviced for unrelated third parties | 614,500 | 612,300
Mortgage servicing rights | 1,300 | 800
Loans and Leases Receivable, Related Parties [Roll Forward] |  |
Balance at January 1 | 2,166 | 1,638
New loans | 1,524 | 587
Adjustment due to change in composition of related parties | 2,448 | 389
Repayments | (202) | (448)
Balance at December 31 | 5,936 | 2,166
Commercial [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 1,267,679 | 1,302,209
Commercial Real Estate [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 2,380,358 | 2,142,057
Paycheck Protection Program [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 430,810 | 0
Residential Real Estate [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 1,466,662 | 1,445,156
Indirect Auto [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 931,286 | 1,193,635
Specialty Lending [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 579,644 | 542,063
Home Equity [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 387,974 | 444,082
Other Consumer [Member] |  |
Summary of Loans [Abstract] |  |
Net Loans | 54,472 | 66,896
Agricultural and Agricultural Real Estate Mortgages [Member] |  |
Summary of Loans [Abstract] |  |
Loans serviced for unrelated third parties | $ 25,700 | $ 25,600

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- Definition Amount before allowance and after 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. + 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=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
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