Loans, Past Due (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2025	Dec. 31, 2024
Recorded investment of past due [Abstract]
Total past due	$ 2,241,755	$ 2,313,242
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	24,595	25,701
Nonaccrual With a related allowance	3,457	5,648
Nonaccrual Without a related allowance	21,138	20,053
90 days or greater past due and accruing	347	276
Total non-performing loans	24,942	25,977
Financing receivables on accrual status [Abstract]
Total financing receivables and still accruing	$ 2,217,160	2,287,541
Minimum [Member]
Financing receivables on nonaccrual status [Abstract]
Period of past due after which loans considered as non accrual	90 days
Current [Member]
Recorded investment of past due [Abstract]
Total past due	$ 2,204,112	2,289,044
Financing receivables on nonaccrual status [Abstract]
Current and non-accrual	5,853	9,795
Financing receivable nonaccrual status	2,204,112	2,289,044
Financing receivables on accrual status [Abstract]
Current and still accruing	2,198,259	2,279,249
Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	37,643	24,198
Financing receivables on nonaccrual status [Abstract]
Total past due and non-accrual	18,742	15,906
Financing receivables on accrual status [Abstract]
Total past due and still accruing	18,901	8,292
30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	3,220	8,245
Financing receivables on nonaccrual status [Abstract]
Total past due and non-accrual	2,167	2,428
Financing receivables on accrual status [Abstract]
Total past due and still accruing	1,053	5,817
60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	17,968	2,199
Financing receivables on nonaccrual status [Abstract]
Total past due and non-accrual	467	0
Financing receivables on accrual status [Abstract]
Total past due and still accruing	17,501	2,199
90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	16,455	13,754
Financing receivables on nonaccrual status [Abstract]
Total past due and non-accrual	16,108	13,478
Financing receivables on accrual status [Abstract]
Total past due and still accruing	347	276
Home Equity [Member]
Recorded investment of past due [Abstract]
Total past due	50,822	49,663
Commercial [Member]
Recorded investment of past due [Abstract]
Total past due	1,151,585	1,121,435
Construction [Member]
Recorded investment of past due [Abstract]
Total past due	138,307	164,326
Real Estate Loans [Member] \| Mortgages [Member]
Recorded investment of past due [Abstract]
Total past due	290,849	301,735
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	3,623	2,706
Nonaccrual With a related allowance	156	165
Nonaccrual Without a related allowance	3,467	2,541
90 days or greater past due and accruing	0	0
Total non-performing loans	3,623	2,706
Real Estate Loans [Member] \| Mortgages [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	286,094	298,439
Real Estate Loans [Member] \| Mortgages [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	4,755	3,296
Real Estate Loans [Member] \| Mortgages [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	683	1,464
Real Estate Loans [Member] \| Mortgages [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	2,232	227
Real Estate Loans [Member] \| Mortgages [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	1,840	1,605
Real Estate Loans [Member] \| Home Equity [Member]
Recorded investment of past due [Abstract]
Total past due	50,822	49,663
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	68	165
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	68	165
90 days or greater past due and accruing	0	0
Total non-performing loans	68	165
Real Estate Loans [Member] \| Home Equity [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	50,537	49,207
Real Estate Loans [Member] \| Home Equity [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	285	456
Real Estate Loans [Member] \| Home Equity [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	130	138
Real Estate Loans [Member] \| Home Equity [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	110	170
Real Estate Loans [Member] \| Home Equity [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	45	148
Real Estate Loans [Member] \| Commercial [Member]
Recorded investment of past due [Abstract]
Total past due	1,151,585	1,121,435
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	12,870	14,364
Nonaccrual With a related allowance	2,084	2,099
Nonaccrual Without a related allowance	10,786	12,265
90 days or greater past due and accruing	333	0
Total non-performing loans	13,203	14,364
Real Estate Loans [Member] \| Commercial [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	1,126,635	1,110,765
Real Estate Loans [Member] \| Commercial [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	24,950	10,670
Real Estate Loans [Member] \| Commercial [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	888	2,782
Real Estate Loans [Member] \| Commercial [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	14,918	1,360
Real Estate Loans [Member] \| Commercial [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	9,144	6,528
Real Estate Loans [Member] \| Agricultural [Member]
Recorded investment of past due [Abstract]
Total past due	331,995	327,722
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	3,190	4,062
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	3,190	4,062
90 days or greater past due and accruing	0	269
Total non-performing loans	3,190	4,331
Real Estate Loans [Member] \| Agricultural [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	329,037	324,168
Real Estate Loans [Member] \| Agricultural [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	2,958	3,554
Real Estate Loans [Member] \| Agricultural [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	965	1,569
Real Estate Loans [Member] \| Agricultural [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	74	140
Real Estate Loans [Member] \| Agricultural [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	1,919	1,845
Real Estate Loans [Member] \| Construction [Member]
Recorded investment of past due [Abstract]
Total past due	138,307	164,326
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	1,329	283
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	1,329	283
90 days or greater past due and accruing	0	0
Total non-performing loans	1,329	283
Real Estate Loans [Member] \| Construction [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	138,024	162,924
Real Estate Loans [Member] \| Construction [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	283	1,402
Real Estate Loans [Member] \| Construction [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	1,119
Real Estate Loans [Member] \| Construction [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	0
Real Estate Loans [Member] \| Construction [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	283	283
Consumer [Member]
Recorded investment of past due [Abstract]
Total past due	46,933	133,207
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	782	1,002
Nonaccrual With a related allowance	782	1,002
Nonaccrual Without a related allowance	0	0
90 days or greater past due and accruing	14	7
Total non-performing loans	796	1,009
Consumer [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	45,588	131,886
Consumer [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	1,345	1,321
Consumer [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	242	292
Consumer [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	307	20
Consumer [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	796	1,009
Other Commercial Loans [Member]
Recorded investment of past due [Abstract]
Total past due	150,171	131,310
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	2,330	2,582
Nonaccrual With a related allowance	435	2,382
Nonaccrual Without a related allowance	1,895	200
90 days or greater past due and accruing	0	0
Total non-performing loans	2,330	2,582
Other Commercial Loans [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	147,819	128,214
Other Commercial Loans [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	2,352	3,096
Other Commercial Loans [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	478
Other Commercial Loans [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	327	282
Other Commercial Loans [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	2,025	2,336
Other Agricultural Loans [Member]
Recorded investment of past due [Abstract]
Total past due	28,366	29,662
Financing receivables on nonaccrual status [Abstract]
Financing receivable nonaccrual status	403	537
Nonaccrual With a related allowance	0	0
Nonaccrual Without a related allowance	403	537
90 days or greater past due and accruing	0	0
Total non-performing loans	403	537
Other Agricultural Loans [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	27,651	29,259
Other Agricultural Loans [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	715	403
Other Agricultural Loans [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	312	403
Other Agricultural Loans [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	0
Other Agricultural Loans [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	403	0
State and Political Subdivision Loans [Member]
Recorded investment of past due [Abstract]
Total past due	52,727	54,182
State and Political Subdivision Loans [Member] \| Current [Member]
Recorded investment of past due [Abstract]
Total past due	52,727	54,182
State and Political Subdivision Loans [Member] \| Total Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	0
State and Political Subdivision Loans [Member] \| 30 to 59 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	0
State and Political Subdivision Loans [Member] \| 60 to 89 Days Past Due [Member]
Recorded investment of past due [Abstract]
Total past due	0	0
State and Political Subdivision Loans [Member] \| 90 Days Or Greater [Member]
Recorded investment of past due [Abstract]
Total past due	$ 0	$ 0

Amount of financing receivable on nonaccrual status with allowance for credit loss.

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Recorded investment in financing receivables that are current and still accruing.

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Recorded investment in financing receivables that are past due and are not performing as per the loan agreement at the balance sheet date.

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Recorded investment in financing receivables total that are still accruing.

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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