Loans and Allowance for Credit Losses (Allowance for Credit Losses on Financing Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	$ 29,014	$ 15,483	$ 16,643	$ 13,944
Merger Adjustments	1,513		1,513
Charge-offs	(1,502)	(202)	(1,786)	(457)
Recoveries	53	321	267	1,315
Net (charge-offs) recoveries	(1,449)	119	(1,519)	858
Provisions	27,973	675	29,623	1,475
Ending Balance	57,051	16,277	57,051	16,277
Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			10,791
Construction
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	2,386	3,345	2,973	2,454
Merger Adjustments	3		3
Charge-offs	0	0	0	0
Recoveries	3	2	10	9
Net (charge-offs) recoveries	3	2	10	9
Provisions	1,439	(315)	(377)	569
Ending Balance	3,831	3,032	3,831	3,032
Construction | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			1,222
Residential real estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	9,151	2,778	2,622	2,858
Merger Adjustments	215		215
Charge-offs	0	0	0	(4)
Recoveries	3	12	37	131
Net (charge-offs) recoveries	3	12	37	127
Provisions	9,806	218	11,327	23
Ending Balance	19,175	3,008	19,175	3,008
Residential real estate | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			4,974
Commercial real estate
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	10,267	4,441	4,899	4,598
Merger Adjustments	985		985
Charge-offs	(1,327)	0	(1,327)	(6)
Recoveries	0	243	0	948
Net (charge-offs) recoveries	(1,327)	243	(1,327)	942
Provisions	12,875	325	14,501	(531)
Ending Balance	22,800	5,009	22,800	5,009
Commercial real estate | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			3,742
Commercial
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	1,956	1,681	1,652	2,070
Merger Adjustments	278		278
Charge-offs	0	(202)	0	(416)
Recoveries	2	60	10	200
Net (charge-offs) recoveries	2	(142)	10	(216)
Provisions	2,101	368	1,996	53
Ending Balance	4,337	1,907	4,337	1,907
Commercial | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			401
Consumer
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	5,254	3,238	4,497	1,964
Merger Adjustments	14		14
Charge-offs	(115)	0	(399)	(31)
Recoveries	45	4	210	27
Net (charge-offs) recoveries	(70)	4	(189)	(4)
Provisions	1,658	79	2,082	1,361
Ending Balance	6,856	$ 3,321	6,856	$ 3,321
Consumer | Consumer Loans, Demand Deposit Overdrafts
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Charge-offs	(95)		(400)
Consumer | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			452
Credit Cards
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance	0		0
Merger Adjustments	18		18
Charge-offs	(60)		(60)
Recoveries	0		0
Net (charge-offs) recoveries	(60)		(60)
Provisions	94		94
Ending Balance	$ 52		52
Credit Cards | Cumulative effect adjustment due to the adoption of ASC 326, net of tax
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Beginning Balance			$ 0