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Loans (Risk Category of Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total | $ 3,091,998 |  | $ 3,081,973
Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 260,788 |  |
2019 | 89,539 |  |
2018 | 50,720 |  |
2017 | 34,881 |  |
2016 | 21,838 |  |
Prior | 55,896 |  |
Revolving Loans Amortized Cost Basis | 125,111 |  |
Total | 638,773 | $ 534,692 | 589,758
Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 297,148 |  |
2019 | 225,718 |  |
2018 | 196,096 |  |
2017 | 208,884 |  |
2016 | 182,886 |  |
Prior | 326,784 |  |
Revolving Loans Amortized Cost Basis | 29,881 |  |
Total | 1,467,397 | 1,500,247 | 1,495,862
Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 61,323 |  |
2019 | 35,433 |  |
2018 | 34,790 |  |
2017 | 42,363 |  |
2016 | 29,875 |  |
Prior | 80,213 |  |
Revolving Loans Amortized Cost Basis | 92,189 |  |
Total | 376,186 | 384,654 | 384,526
Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 18,258 |  |
2019 | 17,517 |  |
2018 | 9,176 |  |
2017 | 5,415 |  |
2016 | 1,605 |  |
Prior | 3,693 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 55,664 | $ 57,257 |
Pass |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  |  | 2,336,007
Pass | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 260,027 |  |
2019 | 88,273 |  |
2018 | 46,681 |  |
2017 | 31,612 |  |
2016 | 21,025 |  |
Prior | 48,508 |  |
Revolving Loans Amortized Cost Basis | 109,228 |  |
Total | 605,354 |  |
Pass | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 296,265 |  |
2019 | 215,226 |  |
2018 | 179,129 |  |
2017 | 183,703 |  |
2016 | 171,016 |  |
Prior | 295,641 |  |
Revolving Loans Amortized Cost Basis | 29,634 |  |
Total | 1,370,614 |  | 1,453,310
Pass | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 49,242 |  |
2019 | 25,449 |  |
2018 | 31,285 |  |
2017 | 32,368 |  |
2016 | 22,702 |  |
Prior | 64,890 |  |
Revolving Loans Amortized Cost Basis | 75,871 |  |
Total | 301,807 |  | 325,991
Pass | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 18,258 |  |
2019 | 17,517 |  |
2018 | 9,176 |  |
2017 | 5,415 |  |
2016 | 1,605 |  |
Prior | 3,693 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 55,664 |  |
Special Mention |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  |  | 99,228
Special Mention | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 618 |  |
2019 | 1,102 |  |
2018 | 2,756 |  |
2017 | 1,739 |  |
2016 | 206 |  |
Prior | 1,972 |  |
Revolving Loans Amortized Cost Basis | 9,948 |  |
Total | 18,341 |  |
Special Mention | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 883 |  |
2019 | 9,361 |  |
2018 | 15,232 |  |
2017 | 23,489 |  |
2016 | 7,578 |  |
Prior | 20,294 |  |
Revolving Loans Amortized Cost Basis | 147 |  |
Total | 76,984 |  | 30,504
Special Mention | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 11,503 |  |
2019 | 9,911 |  |
2018 | 3,111 |  |
2017 | 8,767 |  |
2016 | 2,707 |  |
Prior | 10,125 |  |
Revolving Loans Amortized Cost Basis | 16,318 |  |
Total | 62,442 |  | 49,053
Special Mention | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 |  |
Substandard |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  |  | 46,903
Substandard | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 143 |  |
2019 | 164 |  |
2018 | 1,283 |  |
2017 | 1,530 |  |
2016 | 607 |  |
Prior | 5,416 |  |
Revolving Loans Amortized Cost Basis | 5,935 |  |
Total | 15,078 |  |
Substandard | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 1,131 |  |
2018 | 1,735 |  |
2017 | 1,692 |  |
2016 | 4,292 |  |
Prior | 10,849 |  |
Revolving Loans Amortized Cost Basis | 100 |  |
Total | 19,799 |  | 16,050
Substandard | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 578 |  |
2019 | 73 |  |
2018 | 394 |  |
2017 | 1,228 |  |
2016 | 4,466 |  |
Prior | 5,198 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 11,937 |  | 15,827
Substandard | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 |  |
Doubtful |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
Total |  |  | 0
Doubtful | Commercial and Industrial Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 |  |
Doubtful | Commercial Real Estate Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 |  | 0
Doubtful | Agricultural Loans |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | 0 |  | $ 0
Doubtful | Leases |  |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |  |
2020 | 0 |  |
2019 | 0 |  |
2018 | 0 |  |
2017 | 0 |  |
2016 | 0 |  |
Prior | 0 |  |
Revolving Loans Amortized Cost Basis | 0 |  |
Total | $ 0 |  |

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