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Loans (Allowance for Loan Losses and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | --- | ---
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | $ 2,971 |  |
Collectively Evaluated for Impairment |  |  |  | 12,902 |  |
Allowance for credit losses |  | $ 46,859 | $ 31,931 | 16,278 | $ 15,823 | $ 15,694
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 6,269 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 3,076,835 |  |
Total | [1] |  |  | 3,095,902 |  |
Accrued interest receivable included in total recorded investment in loans and leases | [1] |  |  | 13,929 |  |
Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 405 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 12,798 |  |
Commercial and Industrial Loans and Leases |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 2,412 |  |
Collectively Evaluated for Impairment |  |  |  | 2,387 |  |
Allowance for credit losses |  |  |  | 4,799 | 2,953 | 4,735
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 4,707 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 585,328 |  |
Total | [1] |  |  | 591,403 |  |
Commercial and Industrial Loans and Leases | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 0 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 1,368 |  |
Commercial Real Estate Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 559 |  |
Collectively Evaluated for Impairment |  |  |  | 3,733 |  |
Allowance for credit losses |  | 29,878 |  | 4,692 | 5,291 | 4,591
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 1,562 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 1,491,090 |  |
Total | [1] |  |  | 1,499,864 |  |
Commercial Real Estate Loans | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 400 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 7,212 |  |
Agricultural Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 0 |  |
Collectively Evaluated for Impairment |  |  |  | 5,315 |  |
Allowance for credit losses |  | 6,756 |  | 5,315 | 5,776 | 4,894
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 0 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 387,710 |  |
Total | [1] |  |  | 390,871 |  |
Agricultural Loans | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 0 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 3,161 |  |
Home Equity Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 0 |  |
Collectively Evaluated for Impairment |  |  |  | 200 |  |
Allowance for credit losses |  | 996 |  | 200 | 229 | 330
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 0 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 226,406 |  |
Total | [1] |  |  | 226,775 |  |
Home Equity Loans | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 0 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 369 |  |
Consumer Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 0 |  |
Collectively Evaluated for Impairment |  |  |  | 434 |  |
Allowance for credit losses |  | 490 |  | 434 | 420 | 298
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 0 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 81,429 |  |
Total | [1] |  |  | 81,429 |  |
Consumer Loans | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 0 |  |
Residential Mortgage Loans |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 0 |  |
Collectively Evaluated for Impairment |  |  |  | 328 |  |
Allowance for credit losses |  | 1,944 |  | 333 | 472 | 343
Loans: |  |  |  |  |  |
Loans Individually Evaluated for Impairment |  |  |  | 0 |  |
Loans Collectively Evaluated for Impairment |  |  |  | 304,872 |  |
Total | [1] |  |  | 305,560 |  |
Residential Mortgage Loans | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | 5 |  |
Loans: |  |  |  |  |  |
Total |  |  |  | 688 |  |
Unallocated |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Individually Evaluated for Impairment |  |  |  | 0 |  |
Collectively Evaluated for Impairment |  |  |  | 505 |  |
Allowance for credit losses |  | $ 0 |  | 505 | $ 682 | $ 503
Unallocated | Acquired with Deteriorated Credit Quality |  |  |  |  |  |
Ending Allowance Balance Attributable to Loans: |  |  |  |  |  |
Allowance for credit losses |  |  |  | $ 0 |  |
[1] | Total recorded investment in loans includes $13,929 in accrued interest.

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