Loans, Balance in ACL (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Balance in ACL [Roll Forward]
Beginning balance	$ 57,825	$ 52,148	$ 54,968	$ 49,543	$ 49,543
Provision charged to expense	4,058	2,736	9,843	8,364
Losses charged off	(4,024)	(2,736)	(9,274)	(8,239)
Recoveries	1,276	1,212	3,598	3,692
Ending balance	59,135	53,360	59,135	53,360	54,968
Commercial [Member]
Balance in ACL [Roll Forward]
Losses charged off			(2,272)		(1,476)
Ending balance	1,100		1,100
Commercial [Member] \| Hotel/Motel [Member]
Balance in ACL [Roll Forward]
Beginning balance	5,604	4,447	5,208	4,592	4,592
Provision charged to expense	20	581	416	436
Losses charged off	0	0	0	0	0
Recoveries	0	0	0	0
Ending balance	5,624	5,028	5,624	5,028	5,208
Commercial [Member] \| Commercial Real Estate Residential [Member]
Balance in ACL [Roll Forward]
Beginning balance	6,480	4,349	5,467	4,285	4,285
Provision charged to expense	60	139	1,122	189
Losses charged off	(65)	0	(124)	0	0
Recoveries	5	5	15	19
Ending balance	6,480	4,493	6,480	4,493	5,467
Commercial [Member] \| Commercial Real Estate Nonresidential [Member]
Balance in ACL [Roll Forward]
Beginning balance	11,457	8,706	10,307	7,560	7,560
Provision charged to expense	1,905	388	3,049	1,481
Losses charged off	(1,000)	0	(1,002)	0	0
Recoveries	3	6	11	59
Ending balance	12,365	9,100	12,365	9,100	10,307
Commercial [Member] \| Dealer Floorplans [Member]
Balance in ACL [Roll Forward]
Beginning balance	507	561	682	659	659
Provision charged to expense	107	78	(68)	(20)
Losses charged off	0	0	0	0	0
Recoveries	0	0	0	0
Ending balance	614	639	614	639	682
Commercial [Member] \| Commercial Other [Member]
Balance in ACL [Roll Forward]
Beginning balance	3,711	3,385	3,832	3,760	3,760
Provision charged to expense	(98)	53	550	316
Losses charged off	(191)	(278)	(1,146)	(1,124)
Recoveries	79	228	265	436
Ending balance	3,501	3,388	3,501	3,388	3,832
Residential [Member]
Balance in ACL [Roll Forward]
Losses charged off			(249)		(205)
Residential [Member] \| Real Estate Mortgage [Member]
Balance in ACL [Roll Forward]
Beginning balance	12,953	11,840	12,504	10,197	10,197
Provision charged to expense	726	651	1,240	2,327
Losses charged off	(162)	(37)	(242)	(88)
Recoveries	8	6	23	24
Ending balance	13,525	12,460	13,525	12,460	12,504
Residential [Member] \| Home Equity Lines [Member]
Balance in ACL [Roll Forward]
Beginning balance	1,604	1,318	1,499	1,367	1,367
Provision charged to expense	17	63	116	6
Losses charged off	0	(40)	(7)	(40)	(80)
Recoveries	2	5	15	13
Ending balance	1,623	1,346	1,623	1,346	1,499
Consumer [Member]
Balance in ACL [Roll Forward]
Losses charged off			(6,753)		(8,822)
Consumer [Member] \| Consumer Direct [Member]
Balance in ACL [Roll Forward]
Beginning balance	2,131	3,604	2,221	3,261	3,261
Provision charged to expense	115	65	312	999
Losses charged off	(313)	(249)	(780)	(971)	(1,220)
Recoveries	119	43	299	174
Ending balance	2,052	3,463	2,052	3,463	2,221
Consumer [Member] \| Consumer Indirect [Member]
Balance in ACL [Roll Forward]
Beginning balance	13,378	13,938	13,248	13,862	13,862
Provision charged to expense	1,206	718	3,106	2,630
Losses charged off	(2,293)	(2,132)	(5,973)	(6,016)	(7,602)
Recoveries	1,060	919	2,970	2,967
Ending balance	$ 13,351	$ 13,443	$ 13,351	$ 13,443	$ 13,248

Amount of credit loss expense (reversal of expense) for financing receivable Loans and Losses on Loans.

No definition available.

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- Definition

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

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- Definition

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

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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

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