Loans - Aging of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Loans	$ 5,884,448	$ 4,133,267
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	16,989	9,160
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	5,164	5,189
Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	15,816	9,430
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	37,969	23,779
Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	5,846,479	4,109,488
Commercial and Industrial Loans
Financing Receivable, Past Due [Line Items]
Loans	761,167	591,785
Commercial and Industrial Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	518	531
Commercial and Industrial Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,600	36
Commercial and Industrial Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,096	4,395
Commercial and Industrial Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	9,214	4,962
Commercial and Industrial Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	751,953	586,823
Commercial Real Estate Loans
Financing Receivable, Past Due [Line Items]
Loans	3,142,472	2,224,872
Commercial Real Estate Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,559	546
Commercial Real Estate Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	281	673
Commercial Real Estate Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,497	1,368
Commercial Real Estate Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,337	2,587
Commercial Real Estate Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,135,135	2,222,285
Agricultural Loans
Financing Receivable, Past Due [Line Items]
Loans	489,168	431,037
Agricultural Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	875	241
Agricultural Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Agricultural Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,124	428
Agricultural Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,999	669
Agricultural Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	487,169	430,368
Leases
Financing Receivable, Past Due [Line Items]
Loans	87,073	79,253
Leases | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Leases | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Leases | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Leases | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Leases | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	87,073	79,253
Home Equity Loans
Financing Receivable, Past Due [Line Items]
Loans	484,300	344,808
Home Equity Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,415	1,515
Home Equity Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	140	544
Home Equity Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	776	1,087
Home Equity Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,331	3,146
Home Equity Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	480,969	341,662
Consumer Loans
Financing Receivable, Past Due [Line Items]
Loans	117,648	81,396
Consumer Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,017	185
Consumer Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	287	194
Consumer Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	33	63
Consumer Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,337	442
Consumer Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	116,311	80,954
Credit Cards
Financing Receivable, Past Due [Line Items]
Loans	28,067	22,668
Credit Cards | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	222	398
Credit Cards | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	105	98
Credit Cards | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	148	54
Credit Cards | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	475	550
Credit Cards | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	27,592	22,118
Residential Mortgage Loans
Financing Receivable, Past Due [Line Items]
Loans	774,553	357,448
Residential Mortgage Loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	9,383	5,744
Residential Mortgage Loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,751	3,644
Residential Mortgage Loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,142	2,035
Residential Mortgage Loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans	14,276	11,423
Residential Mortgage Loans | Loans Not Past Due
Financing Receivable, Past Due [Line Items]
Loans	$ 760,277	$ 346,025