Loans and Allowance for Credit Losses - Loans - Credit Quality Indicators (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
2023	$ 576,571		$ 576,571
2022	1,021,530		1,021,530
2021	640,735		640,735
2020	455,655		455,655
2019	279,984		279,984
Prior	835,226		835,226
Revolving Loans Amortized Cost Basis	335,956		335,956
Loans, net of unearned interest	4,145,657	$ 3,314,942	4,145,657	$ 3,314,942	$ 3,514,119
Gross charge offs
Charge-offs	(33)	(15)	(357)	(81)
Current period recoveries
Recoveries	22	69	63	189
Performing Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	130,636		130,636
2022	133,698		133,698
2021	87,794		87,794
2020	93,336		93,336
2019	28,552		28,552
Prior	184,778		184,778
Revolving Loans Amortized Cost Basis	84,858		84,858
Loans, net of unearned interest	743,652		743,652
Nonperforming Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	0		0
2021	37		37
2020	226		226
2019	0		0
Prior	2,692		2,692
Revolving Loans Amortized Cost Basis	0		0
Loans, net of unearned interest	2,955		2,955
Pass
Financing Receivable, Recorded Investment [Line Items]
2023	445,735		445,735
2022	881,727		881,727
2021	551,908		551,908
2020	357,217		357,217
2019	251,202		251,202
Prior	614,227		614,227
Revolving Loans Amortized Cost Basis	243,318		243,318
Loans, net of unearned interest	3,345,334		3,345,334		3,456,553
Special Mention
Financing Receivable, Recorded Investment [Line Items]
2023	200		200
2022	714		714
2021	996		996
2020	1,700		1,700
2019	0		0
Prior	19,477		19,477
Revolving Loans Amortized Cost Basis	5,245		5,245
Loans, net of unearned interest	28,332		28,332		21,897
Substandard
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	5,391		5,391
2021	0		0
2020	3,176		3,176
2019	230		230
Prior	14,052		14,052
Revolving Loans Amortized Cost Basis	2,535		2,535
Loans, net of unearned interest	25,384		25,384		35,669
Commercial portfolio | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
2023	230,914		230,914
2022	561,223		561,223
2021	392,139		392,139
2020	307,073		307,073
2019	188,738		188,738
Prior	572,732		572,732
Revolving Loans Amortized Cost Basis	35,577		35,577
Loans, net of unearned interest	2,288,396	1,942,725	2,288,396	1,942,725	2,052,934
Gross charge offs
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			(16)
Revolving Loans Amortized Cost Basis			0
Charge-offs	0	0	(16)	0
Current period recoveries
Recoveries	0	63	0	128
Net charge offs
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			(16)
Revolving Loans Amortized Cost Basis			0
Net loans (charged off) recovered			(16)
Commercial portfolio | Commercial real estate | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	230,714		230,714
2022	555,982		555,982
2021	391,929		391,929
2020	303,897		303,897
2019	188,508		188,508
Prior	545,699		545,699
Revolving Loans Amortized Cost Basis	35,339		35,339
Loans, net of unearned interest	2,252,068		2,252,068		2,018,088
Commercial portfolio | Commercial real estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2023	200		200
2022	0		0
2021	210		210
2020	0		0
2019	0		0
Prior	16,825		16,825
Revolving Loans Amortized Cost Basis	190		190
Loans, net of unearned interest	17,425		17,425		12,325
Commercial portfolio | Commercial real estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	5,241		5,241
2021	0		0
2020	3,176		3,176
2019	230		230
Prior	10,208		10,208
Revolving Loans Amortized Cost Basis	48		48
Loans, net of unearned interest	18,903		18,903		22,521
Commercial portfolio | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
2023	110,268		110,268
2022	111,720		111,720
2021	76,534		76,534
2020	31,053		31,053
2019	52,412		52,412
Prior	66,372		66,372
Revolving Loans Amortized Cost Basis	200,080		200,080
Loans, net of unearned interest	648,439	555,487	648,439	555,487	596,042
Gross charge offs
2023			0
2022			(100)
2021			0
2020			(111)
2019			0
Prior			(9)
Revolving Loans Amortized Cost Basis			0
Charge-offs	0	(1)	(220)	(1)
Current period recoveries
Recoveries	0	0	0	13
Net charge offs
2023			0
2022			(100)
2021			0
2020			(111)
2019			0
Prior			(9)
Revolving Loans Amortized Cost Basis			0
Net loans (charged off) recovered			(220)
Commercial portfolio | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	110,268		110,268
2022	111,429		111,429
2021	75,748		75,748
2020	31,053		31,053
2019	52,412		52,412
Prior	62,133		62,133
Revolving Loans Amortized Cost Basis	192,538		192,538
Loans, net of unearned interest	635,581		635,581		582,540
Commercial portfolio | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	141		141
2021	786		786
2020	0		0
2019	0		0
Prior	2,652		2,652
Revolving Loans Amortized Cost Basis	5,055		5,055
Loans, net of unearned interest	8,634		8,634		4,212
Commercial portfolio | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	150		150
2021	0		0
2020	0		0
2019	0		0
Prior	1,587		1,587
Revolving Loans Amortized Cost Basis	2,487		2,487
Loans, net of unearned interest	4,224		4,224		9,290
Commercial portfolio | Construction
Financing Receivable, Recorded Investment [Line Items]
2023	104,753		104,753
2022	214,889		214,889
2021	84,231		84,231
2020	23,967		23,967
2019	10,282		10,282
Prior	8,652		8,652
Revolving Loans Amortized Cost Basis	15,441		15,441
Loans, net of unearned interest	462,215	398,966	462,215	398,966	441,246
Gross charge offs
Charge-offs	0	0	0	0
Current period recoveries
Recoveries	0	0	0	24
Commercial portfolio | Construction | Pass
Financing Receivable, Recorded Investment [Line Items]
2023	104,753		104,753
2022	214,316		214,316
2021	84,231		84,231
2020	22,267		22,267
2019	10,282		10,282
Prior	6,395		6,395
Revolving Loans Amortized Cost Basis	15,441		15,441
Loans, net of unearned interest	457,685		457,685		438,990
Commercial portfolio | Construction | Special Mention
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	573		573
2021	0		0
2020	1,700		1,700
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Loans, net of unearned interest	2,273		2,273		2,256
Commercial portfolio | Construction | Substandard
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	2,257		2,257
Revolving Loans Amortized Cost Basis	0		0
Loans, net of unearned interest	2,257		2,257		0
Consumer portfolio | Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
2023	129,139		129,139
2022	132,888		132,888
2021	87,831		87,831
2020	93,562		93,562
2019	28,454		28,454
Prior	187,090		187,090
Revolving Loans Amortized Cost Basis	84,569		84,569
Loans, net of unearned interest	743,533	409,611	743,533	409,611	416,221
Gross charge offs
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			(4)
Revolving Loans Amortized Cost Basis			0
Charge-offs	0	(3)	(4)	(3)
Current period recoveries
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			37
Revolving Loans Amortized Cost Basis			0
Recoveries	7	0	37	4
Net charge offs
2023			0
2022			0
2021			0
2020			0
2019			0
Prior			33
Revolving Loans Amortized Cost Basis			0
Net loans (charged off) recovered			33
Consumer portfolio | Residential mortgage | Performing Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	129,139		129,139
2022	132,888		132,888
2021	87,794		87,794
2020	93,336		93,336
2019	28,454		28,454
Prior	184,398		184,398
Revolving Loans Amortized Cost Basis	84,569		84,569
Loans, net of unearned interest	740,578		740,578
Consumer portfolio | Residential mortgage | Nonperforming Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	0		0
2021	37		37
2020	226		226
2019	0		0
Prior	2,692		2,692
Revolving Loans Amortized Cost Basis	0		0
Loans, net of unearned interest	2,955		2,955
Consumer portfolio | Residential mortgage | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					409,259
Consumer portfolio | Residential mortgage | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					3,104
Consumer portfolio | Residential mortgage | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					3,858
Consumer portfolio | Consumer
Financing Receivable, Recorded Investment [Line Items]
2023	1,497		1,497
2022	810		810
2021	0		0
2020	0		0
2019	98		98
Prior	380		380
Revolving Loans Amortized Cost Basis	289		289
Loans, net of unearned interest	3,074	8,153	3,074	8,153	7,676
Gross charge offs
2023			(70)
2022			0
2021			(8)
2020			(9)
2019			0
Prior			(30)
Revolving Loans Amortized Cost Basis			0
Charge-offs	(33)	(11)	(117)	(77)
Current period recoveries
2023			26
2022			0
2021			0
2020			0
2019			0
Prior			0
Revolving Loans Amortized Cost Basis			0
Recoveries	15	$ 6	26	$ 20
Net charge offs
2023			(44)
2022			0
2021			(8)
2020			(9)
2019			0
Prior			(30)
Revolving Loans Amortized Cost Basis			0
Net loans (charged off) recovered			(91)
Consumer portfolio | Consumer | Performing Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	1,497		1,497
2022	810		810
2021	0		0
2020	0		0
2019	98		98
Prior	380		380
Revolving Loans Amortized Cost Basis	289		289
Loans, net of unearned interest	3,074		3,074
Consumer portfolio | Consumer | Nonperforming Financial Instruments
Financing Receivable, Recorded Investment [Line Items]
2023	0		0
2022	0		0
2021	0		0
2020	0		0
2019	0		0
Prior	0		0
Revolving Loans Amortized Cost Basis	0		0
Loans, net of unearned interest	$ 0		$ 0
Consumer portfolio | Consumer | Pass
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					7,676
Consumer portfolio | Consumer | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					0
Consumer portfolio | Consumer | Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans, net of unearned interest					$ 0