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Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Summary of Loans [Abstract] |  |
Loans | $ 9,969,910 | $ 9,650,713
Deferred loan origination (fees) costs, net | (64,700) | (98,200)
Loans held for sale | 9,744 | 3,371
Loans serviced for unrelated third parties | 982,500 | 856,900
Mortgage servicing rights | 900 | 1,000
Loans and Leases Receivable, Related Parties [Roll Forward] |  |
Balance at January 1 | 1,087 | 2,516
New loans | 412 | 705
Repayments | (501) | (2,134)
Balance at December 31 | 998 | 1,087
Commercial and Industrial [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 1,426,482 | 1,354,248
Commercial Real Estate [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 3,876,698 | 3,626,910
Residential Real Estate [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 2,142,249 | 2,125,804
Loans held for sale | 2,400 | 400
Home Equity [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 334,268 | 337,214
Indirect Auto [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 1,273,253 | 1,130,132
Residential Solar [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 820,079 | 917,755
Loans held for sale | 7,300 | 2,900
Other Consumer [Member] |  |
Summary of Loans [Abstract] |  |
Loans | 96,881 | 158,650
Agricultural and Agricultural Real Estate Mortgages [Member] |  |
Summary of Loans [Abstract] |  |
Loans serviced for unrelated third parties | $ 24,700 | $ 26,400

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- Definition Amount of unamortized loan commitment, origination, and other costs (fees) and purchase premium (discount) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481598/310-20-45-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-4 Reference 3: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 3 -SubTopic 20 -Topic 310 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481569/310-20-50-3 + Details
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