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	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Loans and Leases [Abstract]
Gross loans and leases	$ 3,622,582		$ 3,690,221
Unearned income	(14,236)		(11,833)
Total net loans and leases	3,608,346		3,678,388
Allowance for credit losses	(75,963)	$ (76,169)	(75,283)	$ (75,816)	$ (75,032)	$ (74,965)
Loans and leases held for investment, net	3,532,383		3,603,105
Commercial [Member]
Loans and Leases [Abstract]
Gross loans and leases	1,425,598		1,360,841
Total net loans and leases	1,417,992		1,353,271
Allowance for credit losses	(21,514)	(20,946)	(20,382)	(21,038)	(22,608)	(26,093)
Agricultural [Member]
Loans and Leases [Abstract]
Gross loans and leases	710,789		751,026
Total net loans and leases	710,789		751,026
Allowance for credit losses	(24,347)	(24,469)	(23,615)	(23,418)	(16,486)	(7,744)
Residential and Home Equity [Member]
Loans and Leases [Abstract]
Gross loans and leases	404,635		404,399
Total net loans and leases	404,635		404,399
Allowance for credit losses	(7,473)	(7,599)	(7,340)	(6,967)	(7,584)	(7,770)
Construction [Member]
Loans and Leases [Abstract]
Gross loans and leases	170,681		194,903
Total net loans and leases	170,681		194,903
Allowance for credit losses	(2,820)	(2,766)	(3,055)	(3,473)	(2,165)	(4,432)
Real Estate [Member]
Loans and Leases [Abstract]
Gross loans and leases	2,711,703		2,711,169
Total net loans and leases	2,704,097		2,703,599
Allowance for credit losses	(56,154)	(55,780)	(54,392)	(54,896)	(48,843)	(46,039)
Commercial & Industrial [Member]
Loans and Leases [Abstract]
Gross loans and leases	488,440		504,403
Total net loans and leases	488,440		504,403
Allowance for credit losses	(7,375)	(7,326)	(7,791)	(7,791)	(10,972)	(13,380)
Agricultural [Member]
Loans and Leases [Abstract]
Gross loans and leases	251,958		289,847
Total net loans and leases	251,958		289,847
Allowance for credit losses	(6,631)	(6,982)	(6,725)	(6,929)	(6,908)	(8,872)
Commercial Leases [Member]
Loans and Leases [Abstract]
Gross loans and leases	165,754		179,718
Total net loans and leases	159,124		175,455
Allowance for credit losses	(5,583)	(5,858)	(6,153)	(5,969)	(7,597)	(6,537)
Consumer and Other [Member]
Loans and Leases [Abstract]
Gross loans and leases	4,727		5,084
Total net loans and leases	4,727		5,084
Allowance for credit losses	$ (220)	$ (223)	$ (222)	$ (231)	$ (712)	$ (137)