Loans - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 4,044,268		$ 4,044,268		$ 3,977,900
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Total	599	$ 849	1,660	$ 2,087
Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	57,132		57,132		112,673
Year two	102,806		102,806		135,337
Year three	107,846		107,846		86,555
Year four	80,209		80,209		30,101
Year five	23,593		23,593		34,281
Prior	64,898		64,898		49,183
Revolving Loans Amortized Cost Basis	155,215		155,215		141,411
Total	591,699		591,699		589,541
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			4		911
Year three			17		32
Year four			64		493
Year five			0		7
Prior			0		88
Revolving Loans Amortized Cost Basis			46		261
Total	29	343	131	1,077	1,792
Commercial and Industrial Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	56,965		56,965		112,626
Year two	102,762		102,762		134,590
Year three	107,144		107,144		80,738
Year four	75,968		75,968		28,492
Year five	21,595		21,595		32,585
Prior	60,676		60,676		45,764
Revolving Loans Amortized Cost Basis	150,100		150,100		134,936
Total	575,210		575,210		569,731
Commercial and Industrial Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	167		167		47
Year two	44		44		453
Year three	455		455		128
Year four	610		610		829
Year five	1,151		1,151		0
Prior	1,966		1,966		1,948
Revolving Loans Amortized Cost Basis	3,233		3,233		3,048
Total	7,626		7,626		6,453
Commercial and Industrial Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		294
Year three	247		247		5,689
Year four	3,631		3,631		780
Year five	847		847		1,696
Prior	2,256		2,256		1,471
Revolving Loans Amortized Cost Basis	1,882		1,882		3,427
Total	8,863		8,863		13,357
Commercial and Industrial Loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	146,095		146,095		314,475
Year two	337,165		337,165		419,892
Year three	413,138		413,138		487,582
Year four	465,006		465,006		228,461
Year five	206,433		206,433		148,419
Prior	566,632		566,632		481,090
Revolving Loans Amortized Cost Basis	37,978		37,978		41,916
Total	2,172,447		2,172,447		2,121,835
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			0		0
Year three			0		56
Year four			0		0
Year five			0		0
Prior			308		0
Revolving Loans Amortized Cost Basis			0		0
Total	0	0	308	0	56
Commercial Real Estate Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	145,780		145,780		300,569
Year two	322,924		322,924		416,874
Year three	408,533		408,533		470,917
Year four	448,517		448,517		225,668
Year five	204,309		204,309		147,431
Prior	547,354		547,354		458,821
Revolving Loans Amortized Cost Basis	37,087		37,087		41,102
Total	2,114,504		2,114,504		2,061,382
Commercial Real Estate Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	315		315		13,906
Year two	13,779		13,779		2,401
Year three	3,353		3,353		11,155
Year four	11,071		11,071		1,651
Year five	2,053		2,053		259
Prior	15,306		15,306		19,532
Revolving Loans Amortized Cost Basis	891		891		638
Total	46,768		46,768		49,542
Commercial Real Estate Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	462		462		617
Year three	1,252		1,252		5,510
Year four	5,418		5,418		1,142
Year five	71		71		729
Prior	3,972		3,972		2,737
Revolving Loans Amortized Cost Basis	0		0		176
Total	11,175		11,175		10,911
Commercial Real Estate Loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	32,053		32,053		46,443
Year two	40,754		40,754		56,455
Year three	50,350		50,350		40,954
Year four	37,006		37,006		47,514
Year five	44,212		44,212		25,755
Prior	126,785		126,785		114,968
Revolving Loans Amortized Cost Basis	82,582		82,582		91,714
Total	413,742		413,742		423,803
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			0		0
Year three			0		0
Year four			0		2
Year five			0		0
Prior			1		0
Revolving Loans Amortized Cost Basis			0		25
Total	1	25	1	25	27
Agricultural Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	31,344		31,344		44,948
Year two	39,275		39,275		56,291
Year three	50,204		50,204		39,852
Year four	36,162		36,162		42,279
Year five	39,156		39,156		23,217
Prior	113,052		113,052		100,391
Revolving Loans Amortized Cost Basis	79,839		79,839		89,455
Total	389,032		389,032		396,433
Agricultural Loans | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	518		518		1,495
Year two	1,479		1,479		164
Year three	146		146		903
Year four	844		844		5,047
Year five	5,056		5,056		2,338
Prior	9,981		9,981		9,894
Revolving Loans Amortized Cost Basis	2,743		2,743		2,259
Total	20,767		20,767		22,100
Agricultural Loans | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	191		191		0
Year two	0		0		0
Year three	0		0		199
Year four	0		0		188
Year five	0		0		200
Prior	3,752		3,752		4,683
Revolving Loans Amortized Cost Basis	0		0		0
Total	3,943		3,943		5,270
Agricultural Loans | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	13,913		13,913		36,848
Year two	31,072		31,072		12,281
Year three	10,279		10,279		10,634
Year four	8,338		8,338		6,086
Year five	3,960		3,960		4,788
Prior	5,174		5,174		1,351
Revolving Loans Amortized Cost Basis	0		0		0
Total	72,736		72,736		71,988
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			0		0
Year three			0		0
Year four			0		0
Year five			0		0
Prior			0		0
Revolving Loans Amortized Cost Basis			0		0
Total	0	0	0	0	0
Leases | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	13,913		13,913		36,848
Year two	31,072		31,072		12,281
Year three	10,279		10,279		10,634
Year four	8,338		8,338		6,086
Year five	3,960		3,960		4,788
Prior	5,174		5,174		1,351
Revolving Loans Amortized Cost Basis	0		0		0
Total	72,736		72,736		71,988
Leases | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Leases | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Leases | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	0		0		0
Year three	0		0		0
Year four	0		0		0
Year five	0		0		0
Prior	0		0		0
Revolving Loans Amortized Cost Basis	0		0		0
Total	0		0		0
Consumer Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	22,001		22,001		49,282
Year two	33,596		33,596		21,480
Year three	13,170		13,170		9,720
Year four	7,082		7,082		2,756
Year five	1,843		1,843		917
Prior	2,036		2,036		1,912
Revolving Loans Amortized Cost Basis	1,443		1,443		1,786
Total	81,171		81,171		87,853
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			561		1,162
Year two			104		42
Year three			48		23
Year four			37		71
Year five			0		3
Prior			0		1
Revolving Loans Amortized Cost Basis			3		7
Total	384	284	753	628	1,309
Home Equity Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	0		0		0
Year two	285		285		417
Year three	2,872		2,872		488
Year four	371		371		150
Year five	292		292		165
Prior	3,646		3,646		1,309
Revolving Loans Amortized Cost Basis	314,577		314,577		297,156
Total	322,043		322,043		299,685
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			0		0
Year three			35		0
Year four			99		55
Year five			0		0
Prior			0		24
Revolving Loans Amortized Cost Basis			0		15
Total	0	25	134	39	94
Residential Mortgage Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Year one	32,721		32,721		56,317
Year two	54,170		54,170		65,361
Year three	62,206		62,206		86,170
Year four	80,022		80,022		41,639
Year five	38,731		38,731		17,940
Prior	101,147		101,147		95,417
Revolving Loans Amortized Cost Basis	0		0		0
Total	368,997		368,997		362,844
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract]
Year one			0		0
Year two			0		0
Year three			0		22
Year four			0		36
Year five			0		0
Prior			0		0
Revolving Loans Amortized Cost Basis			0		0
Total	$ 0	$ 31	$ 0	$ 57	$ 58