Loans and Allowance - Summary of Non-Accrual Loans by Loan Class (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	$ 42,698	$ 43,062
Non-Accrual Loans with no Allowance for Credit Losses	8,441	9,080
Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	8,696	7,598
Non-Accrual Loans with no Allowance for Credit Losses	0	263
Agricultural land, production and other loans to farmers
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	103	631
Non-Accrual Loans with no Allowance for Credit Losses	0	524
Construction
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	740	685
Non-Accrual Loans with no Allowance for Credit Losses	0	0
Commercial real estate, non-owner occupied
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	21,427	23,029
Non-Accrual Loans with no Allowance for Credit Losses	4,201	6,133
Commercial real estate, owner occupied
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	1,689	411
Non-Accrual Loans with no Allowance for Credit Losses	1,320	0
Residential
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	8,553	9,153
Non-Accrual Loans with no Allowance for Credit Losses	2,920	2,160
Home equity
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	1,490	1,552
Non-Accrual Loans with no Allowance for Credit Losses	0	0
Individuals' loans for household and other personal expenditures
Financing Receivable, Past Due [Line Items]
Non-Accrual Loans	0	3
Non-Accrual Loans with no Allowance for Credit Losses	$ 0	$ 0