Fair Value Disclosures - Significant Assumptions (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets [Abstract]
Securities available for sale	$ 684,641	$ 779,347
Loans held for sale, carried at fair value	13,979	26,518
Assets
Loans held for sale, carried at the lower of cost or fair value	14,802	28,860
U.S. agency
Assets [Abstract]
Securities available for sale	9,503	12,101
U.S. agency residential mortgage-backed
Assets [Abstract]
Securities available for sale	80,682	90,458
U.S. agency commercial mortgage-backed
Assets [Abstract]
Securities available for sale	12,157	13,453
Private label mortgage-backed
Assets [Abstract]
Securities available for sale	86,662	93,845
Other asset backed
Assets [Abstract]
Securities available for sale	135,288	194,725
Obligations of states and political subdivisions
Assets [Abstract]
Securities available for sale	285,728	295,677
Corporate
Assets [Abstract]
Securities available for sale	73,678	78,157
Trust preferred
Assets [Abstract]
Securities available for sale	943	931
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets [Abstract]
Securities available for sale	0	0
Derivative financial instruments	0	0
Liabilities
Derivatives	0	0
Significant Other Observable Inputs (Level 2)
Assets [Abstract]
Securities available for sale	684,641	779,347
Derivative financial instruments	49,227	39,747
Liabilities
Derivatives	23,183	19,127
Significant Un- observable Inputs (Level 3)
Assets [Abstract]
Securities available for sale	0	0
Derivative financial instruments	0	0
Liabilities
Derivatives	0	0
Measured at Fair Value on a Recurring Basis
Assets [Abstract]
Loans held for sale, carried at fair value	13,979	26,518
Capitalized mortgage loan servicing rights	46,057	42,489
Derivative financial instruments	49,227	39,747
Liabilities
Derivatives	23,183	19,127
Assets
Loans held for sale, carried at the lower of cost or fair value		20,367
Measured at Fair Value on a Recurring Basis | U.S. agency
Assets [Abstract]
Securities available for sale	9,503	12,101
Measured at Fair Value on a Recurring Basis | U.S. agency residential mortgage-backed
Assets [Abstract]
Securities available for sale	80,682	90,458
Measured at Fair Value on a Recurring Basis | U.S. agency commercial mortgage-backed
Assets [Abstract]
Securities available for sale	12,157	13,453
Measured at Fair Value on a Recurring Basis | Private label mortgage-backed
Assets [Abstract]
Securities available for sale	86,662	93,845
Measured at Fair Value on a Recurring Basis | Other asset backed
Assets [Abstract]
Securities available for sale	135,288	194,725
Measured at Fair Value on a Recurring Basis | Obligations of states and political subdivisions
Assets [Abstract]
Securities available for sale	285,728	295,677
Measured at Fair Value on a Recurring Basis | Corporate
Assets [Abstract]
Securities available for sale	73,678	78,157
Measured at Fair Value on a Recurring Basis | Trust preferred
Assets [Abstract]
Securities available for sale	943	931
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets [Abstract]
Loans held for sale, carried at fair value	0	0
Capitalized mortgage loan servicing rights	0	0
Derivative financial instruments	0	0
Liabilities
Derivatives	0	0
Assets
Loans held for sale, carried at the lower of cost or fair value		20,367
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. agency
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. agency residential mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. agency commercial mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Private label mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other asset backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Trust preferred
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2)
Assets [Abstract]
Loans held for sale, carried at fair value	13,979	26,518
Capitalized mortgage loan servicing rights	0	0
Derivative financial instruments	49,227	39,747
Liabilities
Derivatives	23,183	19,127
Assets
Loans held for sale, carried at the lower of cost or fair value		0
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. agency
Assets [Abstract]
Securities available for sale	9,503	12,101
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. agency residential mortgage-backed
Assets [Abstract]
Securities available for sale	80,682	90,458
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | U.S. agency commercial mortgage-backed
Assets [Abstract]
Securities available for sale	12,157	13,453
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | Private label mortgage-backed
Assets [Abstract]
Securities available for sale	86,662	93,845
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | Other asset backed
Assets [Abstract]
Securities available for sale	135,288	194,725
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions
Assets [Abstract]
Securities available for sale	285,728	295,677
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | Corporate
Assets [Abstract]
Securities available for sale	73,678	78,157
Measured at Fair Value on a Recurring Basis | Significant Other Observable Inputs (Level 2) | Trust preferred
Assets [Abstract]
Securities available for sale	943	931
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3)
Assets [Abstract]
Loans held for sale, carried at fair value	0	0
Capitalized mortgage loan servicing rights	46,057	42,489
Derivative financial instruments	0	0
Liabilities
Derivatives	0	0
Assets
Loans held for sale, carried at the lower of cost or fair value		0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | U.S. agency
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | U.S. agency residential mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | U.S. agency commercial mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | Private label mortgage-backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | Other asset backed
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | Obligations of states and political subdivisions
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | Corporate
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Recurring Basis | Significant Un- observable Inputs (Level 3) | Trust preferred
Assets [Abstract]
Securities available for sale	0	0
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Commercial | Commercial and industrial
Assets
Loans receivable, fair value disclosure	2,769	138
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Commercial | Commercial real estate
Assets
Loans receivable, fair value disclosure		1,068
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Mortgage | 1-4 family owner occupied - non-jumbo
Assets
Loans receivable, fair value disclosure	655	415
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Mortgage | 1-4 family non-owner occupied
Assets
Loans receivable, fair value disclosure		52
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Mortgage | 1-4 family - 2nd lien
Assets
Loans receivable, fair value disclosure	201	165
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Mortgage | Resort lending
Assets
Loans receivable, fair value disclosure	60	25
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Installment | Boat lending
Assets
Loans receivable, fair value disclosure	134	196
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Installment | Recreational vehicle lending
Assets
Loans receivable, fair value disclosure	152	19
Measured at Fair Value on a Non-recurring Basis: | Collateral dependent loans | Installment | Other
Assets
Loans receivable, fair value disclosure	57	87
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Commercial | Commercial and industrial
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Commercial | Commercial real estate
Assets
Loans receivable, fair value disclosure		0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Mortgage | 1-4 family owner occupied - non-jumbo
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Mortgage | 1-4 family non-owner occupied
Assets
Loans receivable, fair value disclosure		0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Mortgage | 1-4 family - 2nd lien
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Mortgage | Resort lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Installment | Boat lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Installment | Recreational vehicle lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Quoted Prices in Active Markets for Identical Assets (Level 1) | Collateral dependent loans | Installment | Other
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Commercial | Commercial and industrial
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Commercial | Commercial real estate
Assets
Loans receivable, fair value disclosure		0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Mortgage | 1-4 family owner occupied - non-jumbo
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Mortgage | 1-4 family non-owner occupied
Assets
Loans receivable, fair value disclosure		0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Mortgage | 1-4 family - 2nd lien
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Mortgage | Resort lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Installment | Boat lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Installment | Recreational vehicle lending
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Other Observable Inputs (Level 2) | Collateral dependent loans | Installment | Other
Assets
Loans receivable, fair value disclosure	0	0
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Commercial | Commercial and industrial
Assets
Loans receivable, fair value disclosure	2,769	138
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Commercial | Commercial real estate
Assets
Loans receivable, fair value disclosure		1,068
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Mortgage | 1-4 family owner occupied - non-jumbo
Assets
Loans receivable, fair value disclosure	655	415
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Mortgage | 1-4 family non-owner occupied
Assets
Loans receivable, fair value disclosure		52
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Mortgage | 1-4 family - 2nd lien
Assets
Loans receivable, fair value disclosure	201	165
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Mortgage | Resort lending
Assets
Loans receivable, fair value disclosure	60	25
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Installment | Boat lending
Assets
Loans receivable, fair value disclosure	134	196
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Installment | Recreational vehicle lending
Assets
Loans receivable, fair value disclosure	152	19
Measured at Fair Value on a Non-recurring Basis: | Significant Un- observable Inputs (Level 3) | Collateral dependent loans | Installment | Other
Assets
Loans receivable, fair value disclosure	$ 57	$ 87