Loans and Allowance for Credit Losses - Allowance for Credit Losses and Balances in Loan Portfolio (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
Mar. 01, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		$ 35,550	$ 16,552	$ 16,552
Acquisition related allowance for credit loss (PCD)	$ 4,924	5,796	4,924	4,924
Charge-offs		(230)	(155)	(1,457)
Recoveries		176	83	418
Provision		0	13,163	15,113
Ending balance		35,496	34,567	35,550
Ending loan balance		2,983,297	2,924,955	3,022,034
Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		219	90	90
Acquisition related allowance for credit loss (PCD)	2	8	2	2
Charge-offs		0	0
Recoveries		0	0
Provision		(48)	128	127
Ending balance		171	220	219
Ending loan balance		47,840	48,165	56,218
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		6,797	2,260	2,260
Acquisition related allowance for credit loss (PCD)	2,960	2,939	2,963	2,963
Charge-offs		0	0	(245)
Recoveries		20	2	9
Provision		2,108	278	1,810
Ending balance		8,925	5,503	6,797
Ending loan balance		369,425	345,138	352,556
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		693	733	733
Acquisition related allowance for credit loss (PCD)	$ 0	0
Charge-offs		(204)	(133)	(720)
Recoveries		147	60	380
Provision		(73)	43	300
Ending balance		563	703	693
Ending loan balance		23,180	30,932	26,701
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		18,416	9,460	9,460
Acquisition related allowance for credit loss (PCD)			1,791	1,791
Charge-offs		0	0	(416)
Recoveries		0	0
Provision		(2,665)	9,476	7,581
Ending balance		15,751	20,727	18,416
Ending loan balance		1,745,410	1,757,598	1,780,396
Construction Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		80	59	59
Charge-offs		0	0
Recoveries		0	0
Provision		(33)	31	21
Ending balance		47	90	80
Ending loan balance		20,897	18,067	19,139
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		9,257	3,890	3,890
Acquisition related allowance for credit loss (PCD)			168	168
Charge-offs		(26)	(22)	(76)
Recoveries		9	21	29
Provision		722	3,263	5,246
Ending balance		9,962	7,320	9,257
Ending loan balance		725,358	722,662	728,037
Mortgage Warehouse Advances [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Beginning balance		88	60	60
Charge-offs		0	0
Recoveries		0	0
Provision		(11)	(56)	28
Ending balance		77	4	88
Ending loan balance		$ 51,187	$ 2,393	$ 58,987

Allowance for loan and lease losses acquisition related allowance for credit loss purchased with credit deterioration.

No definition available.

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- Definition

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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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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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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Amount of credit loss expense (reversal of expense) for financing receivable.

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