Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Loans and Leases - Components of Loans and Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Loans and Leases [Abstract]
Gross loans and leases	$ 3,635,831		$ 3,690,221
Unearned income	(12,195)		(11,833)
Total net loans and leases	3,623,636		3,678,388
Allowance for credit losses	(76,169)	$ (75,423)	(75,283)	$ (75,032)	$ (75,018)	$ (74,965)
Loans and leases held for investment, net	3,547,467		3,603,105
Commercial [Member]
Loans and Leases [Abstract]
Gross loans and leases	1,410,836		1,360,841
Total net loans and leases	1,403,119		1,353,271
Allowance for credit losses	(20,946)	(20,313)	(20,382)	(22,608)	(22,414)	(26,093)
Agricultural [Member]
Loans and Leases [Abstract]
Gross loans and leases	720,079		751,026
Total net loans and leases	720,079		751,026
Allowance for credit losses	(24,469)	(24,077)	(23,615)	(16,486)	(11,377)	(7,744)
Residential and Home Equity [Member]
Loans and Leases [Abstract]
Gross loans and leases	401,848		404,399
Total net loans and leases	401,848		404,399
Allowance for credit losses	(7,599)	(7,479)	(7,340)	(7,584)	(7,721)	(7,770)
Construction [Member]
Loans and Leases [Abstract]
Gross loans and leases	173,827		194,903
Total net loans and leases	173,827		194,903
Allowance for credit losses	(2,766)	(2,648)	(3,055)	(2,165)	(4,616)	(4,432)
Real Estate [Member]
Loans and Leases [Abstract]
Gross loans and leases	2,706,590		2,711,169
Total net loans and leases	2,698,873		2,703,599
Allowance for credit losses	(55,780)	(54,517)	(54,392)	(48,843)	(46,128)	(46,039)
Commercial & Industrial [Member]
Loans and Leases [Abstract]
Gross loans and leases	491,547		504,403
Total net loans and leases	491,547		504,403
Allowance for credit losses	(7,326)	(7,843)	(7,791)	(10,972)	(11,559)	(13,380)
Agricultural [Member]
Loans and Leases [Abstract]
Gross loans and leases	261,450		289,847
Total net loans and leases	261,450		289,847
Allowance for credit losses	(6,982)	(6,417)	(6,725)	(6,908)	(10,292)	(8,872)
Commercial Leases [Member]
Loans and Leases [Abstract]
Gross loans and leases	171,212		179,718
Total net loans and leases	166,734		175,455
Allowance for credit losses	(5,858)	(6,429)	(6,153)	(7,597)	(6,923)	(6,537)
Consumer and Other [Member]
Loans and Leases [Abstract]
Gross loans and leases	5,032		5,084
Total net loans and leases	5,032		5,084
Allowance for credit losses	$ (223)	$ (217)	$ (222)	$ (712)	$ (116)	$ (137)