Loans and Allowance for Credit Losses - Allowance (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Changes in the allowance for loan losses
Beginning balance	$ 30,294	$ 22,734	$ 23,837	$ 18,266
Provision (release of allowance) for credit losses	(159)	5,120	309	11,500
Provision (release of allowance) for credit losses	(159)	5,120	182	11,500
Initial allowance on loans purchased with credit deterioration			1,217
Charge-offs	(8,064)	(3,652)	(16,611)	(7,304)
Recoveries	2,205	2,313	7,842	4,053
Ending balance	24,276	26,515	24,276	26,515
Individually evaluated for impairment	1,686	2,631	1,686	2,631
Collectively evaluated for impairment		23,884		23,884
Charge-offs	8,064	3,652	16,611	7,304
Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			7,682
Total commercial
Changes in the allowance for loan losses
Beginning balance	16,066	15,685	15,539	14,100
Provision (release of allowance) for credit losses	2,110	1,507	4,831	3,020
Initial allowance on loans purchased with credit deterioration			710
Charge-offs	(4,028)	0	(4,297)	0
Recoveries	11	106	60	178
Ending balance	14,159	17,298	14,159	17,298
Individually evaluated for impairment	1,491	2,299	1,491	2,299
Collectively evaluated for impairment		14,999		14,999
Charge-offs	4,028	0	4,297	0
Total commercial \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			(2,684)
Total commercial \| Business
Changes in the allowance for loan losses
Beginning balance	11,308	8,077	8,771	8,027
Provision (release of allowance) for credit losses	1,584	1,626	3,770	1,666
Initial allowance on loans purchased with credit deterioration			710
Charge-offs	(4,028)	0	(4,297)	0
Recoveries	4	41	40	51
Ending balance	8,868	9,744	8,868	9,744
Individually evaluated for impairment	1,491	2,078	1,491	2,078
Collectively evaluated for impairment		7,666		7,666
Charge-offs	4,028	0	4,297	0
Total commercial \| Business \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			(126)
Total commercial \| Real estate
Changes in the allowance for loan losses
Beginning balance	3,051	6,641	5,704	5,091
Provision (release of allowance) for credit losses	183	(310)	363	1,178
Initial allowance on loans purchased with credit deterioration			0
Charge-offs	0	0	0	0
Recoveries	7	65	20	127
Ending balance	3,241	6,396	3,241	6,396
Individually evaluated for impairment		221		221
Collectively evaluated for impairment		6,175		6,175
Charge-offs	0	0	0	0
Total commercial \| Real estate \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			(2,846)
Total commercial \| Acquisition, development and construction
Changes in the allowance for loan losses
Beginning balance	1,707	967	1,064	982
Provision (release of allowance) for credit losses	343	191	698	176
Initial allowance on loans purchased with credit deterioration			0
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	2,050	1,158	2,050	1,158
Individually evaluated for impairment		0		0
Collectively evaluated for impairment		1,158		1,158
Charge-offs	0	0	0	0
Total commercial \| Acquisition, development and construction \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			288
Total commercial \| Subprime Consumer Automotive Segment
Changes in the allowance for loan losses
Charge-offs	(2,400)
Charge-offs	$ 2,400
Charge-off percentage	30.00%
Total commercial \| Funded Loan
Changes in the allowance for loan losses
Charge-offs	$ (900)
Charge-offs	$ 900
Charge-off percentage	11.00%
Residential real estate
Changes in the allowance for loan losses
Beginning balance	$ 7,168	1,772	2,880	1,492
Provision (release of allowance) for credit losses	(242)	1,165	(328)	1,445
Initial allowance on loans purchased with credit deterioration			507
Charge-offs	(359)	0	(381)	0
Recoveries	0	0	0	0
Ending balance	6,567	2,937	6,567	2,937
Individually evaluated for impairment	36	84	36	84
Collectively evaluated for impairment		2,853		2,853
Charge-offs	359	0	381	0
Residential real estate \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			3,889
Home Equity
Changes in the allowance for loan losses
Beginning balance	114	141	131	128
Provision (release of allowance) for credit losses	(15)	(6)	(29)	3
Initial allowance on loans purchased with credit deterioration			0
Charge-offs	0	0	0	0
Recoveries	1	1	3	5
Ending balance	100	136	100	136
Individually evaluated for impairment		0		0
Collectively evaluated for impairment		136		136
Charge-offs	0	0	0	0
Home Equity \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			(5)
Consumer
Changes in the allowance for loan losses
Beginning balance	6,946	5,136	5,287	2,546
Provision (release of allowance) for credit losses	(2,012)	2,454	(4,165)	7,032
Initial allowance on loans purchased with credit deterioration			0
Charge-offs	(3,677)	(3,652)	(11,933)	(7,304)
Recoveries	2,193	2,206	7,779	3,870
Ending balance	3,450	6,144	3,450	6,144
Individually evaluated for impairment	159	248	159	248
Collectively evaluated for impairment		5,896		5,896
Charge-offs	3,677	$ 3,652	11,933	$ 7,304
Consumer \| Impact of adopting ASC 326
Changes in the allowance for loan losses
Beginning balance			6,482
Consumer \| Subprime Consumer Automotive Segment
Changes in the allowance for loan losses
Charge-offs	(3,700)		(12,000)
Charge-offs	$ 3,700		$ 12,000
Charge-off percentage	46.00%		72.00%
Unrelated Commercial and Consumer
Changes in the allowance for loan losses
Charge-offs	$ (1,100)
Charge-offs	$ 1,100
Four Additional Unrelated Commercial and Consumer
Changes in the allowance for loan losses
Charge-offs			$ (300)
Charge-offs			$ 300

Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, Percentage

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Financing Receivable, Excluding Accrued Interest, Credit Loss Expense (Reversal), Excluding Unfunded Commitments

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from purchase of loan. Excludes financing receivable purchased with credit deterioration, loan acquired through business combination or acquisition, and net investment in lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

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