Fair Value Disclosures, Significant Assumptions (Details) - USD ($) $ in Thousands		Mar. 31, 2022		Dec. 31, 2021
Assets [Abstract]
Securities available for sale		$ 1,400,137		$ 1,412,830
Loans held for sale, carried at fair value		29,514		55,470
U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		43,588		34,674
U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		277,003		307,985
U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		21,591		22,926
Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		112,083		102,615
Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		279,156		216,170
Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		520,078		576,076
Corporate [Member]
Assets [Abstract]
Securities available for sale		144,251		149,959
Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		1,885		1,919
Foreign Government [Member]
Assets [Abstract]
Securities available for sale		502		506
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Securities available for sale		0		0
Derivatives		0		0
Liabilities [Abstract]
Derivatives		0		0
Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Securities available for sale		1,400,137		1,412,830
Derivatives		20,557		12,283
Liabilities [Abstract]
Derivatives		9,045		5,961
Significant Un-observable Inputs (Level 3) [Member]
Assets [Abstract]
Securities available for sale		0		0
Derivatives		0		0
Liabilities [Abstract]
Derivatives		0		0
Recurring Basis [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		29,514		55,470
Capitalized mortgage loan servicing rights		35,933		26,232
Derivatives	[1]	20,557		12,283
Liabilities [Abstract]
Derivatives	[2]	9,045		5,961
Recurring Basis [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		43,588		34,674
Recurring Basis [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		277,003		307,985
Recurring Basis [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		21,591		22,926
Recurring Basis [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		112,083		102,615
Recurring Basis [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		279,156		216,170
Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		520,078		576,076
Recurring Basis [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		144,251		149,959
Recurring Basis [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		1,885		1,919
Recurring Basis [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		502		506
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		0		0
Capitalized mortgage loan servicing rights		0		0
Derivatives	[1]	0		0
Liabilities [Abstract]
Derivatives	[2]	0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		29,514		55,470
Capitalized mortgage loan servicing rights		0		0
Derivatives	[1]	20,557		12,283
Liabilities [Abstract]
Derivatives	[2]	9,045		5,961
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		43,588		34,674
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		277,003		307,985
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		21,591		22,926
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		112,083		102,615
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		279,156		216,170
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		520,078		576,076
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		144,251		149,959
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		1,885		1,919
Recurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		502		506
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member]
Assets [Abstract]
Loans held for sale, carried at fair value		0		0
Capitalized mortgage loan servicing rights		35,933		26,232
Derivatives	[1]	0		0
Liabilities [Abstract]
Derivatives	[2]	0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency Residential Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | U.S. Agency Commercial Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Private Label Mortgage-Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Other Asset Backed [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Obligations of States and Political Subdivisions [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Corporate [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Trust Preferred [Member]
Assets [Abstract]
Securities available for sale		0		0
Recurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Foreign Government [Member]
Assets [Abstract]
Securities available for sale		0		0
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial and Industrial [Member]
Assets [Abstract]
Loans receivable		250	[3]	274	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial Real Estate [Member]
Assets [Abstract]
Loans receivable		59	[3]	65	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Assets [Abstract]
Loans receivable		362	[3]	516	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Assets [Abstract]
Loans receivable		96	[3]	130	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Assets [Abstract]
Loans receivable		137	[3]	121	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | Resort Lending [Member]
Assets [Abstract]
Loans receivable		25	[3]	77	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Boat Lending [Member]
Assets [Abstract]
Loans receivable		52	[3]	51	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Recreational Vehicle Lending [Member]
Assets [Abstract]
Loans receivable		22	[3]	77	[4]
Nonrecurring Basis [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Other [Member]
Assets [Abstract]
Loans receivable		83	[3]	45	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial and Industrial [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial Real Estate [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | Resort Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Boat Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Recreational Vehicle Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Other [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial and Industrial [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial Real Estate [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | Resort Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Boat Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Recreational Vehicle Lending [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Other Observable Inputs (Level 2) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Other [Member]
Assets [Abstract]
Loans receivable		0	[3]	0	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial and Industrial [Member]
Assets [Abstract]
Loans receivable		250	[3]	274	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Commercial [Member] | Commercial Real Estate [Member]
Assets [Abstract]
Loans receivable		59	[3]	65	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Owner Occupied - Non-jumbo [Member]
Assets [Abstract]
Loans receivable		362	[3]	516	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family Non-owner Occupied [Member]
Assets [Abstract]
Loans receivable		96	[3]	130	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | 1-4 Family - 2nd Lien [Member]
Assets [Abstract]
Loans receivable		137	[3]	121	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Mortgage [Member] | Resort Lending [Member]
Assets [Abstract]
Loans receivable		25	[3]	77	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Boat Lending [Member]
Assets [Abstract]
Loans receivable		52	[3]	51	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Recreational Vehicle Lending [Member]
Assets [Abstract]
Loans receivable		22	[3]	77	[4]
Nonrecurring Basis [Member] | Significant Un-observable Inputs (Level 3) [Member] | Collateral Dependent Loans [Member] | Installment [Member] | Other [Member]
Assets [Abstract]
Loans receivable		$ 83	[3]	$ 45	[4]

[1] Included in accrued income and other assets

[2] Included in accrued expenses and other liabilities

[3] Only includes individually evaluated loans with specific loss allocations based on collateral value.

[4] Only includes impaired loans with specific loss allocations based on collateral value.