Loans and Allowance for Credit Losses (Loan Risk Ratings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Credit quality categories
Prior	$ 1,059,173
2019	277,491
2020	461,213
2021	837,657
2022	1,107,579
2023	670,765
Revolving Loans	201,381
Revolving Converted to Term Loans	25,751
Total	4,641,010	$ 2,556,107
Current period gross charge-offs
Total gross charge-offs	(2,373)	(588)
Loans Evaluated By Performing Status
Credit quality categories
Prior	0
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	6,583
Revolving Converted to Term Loans	0
Total	6,583
Current period gross charge-offs
Gross charge-offs, prior	0
Gross charge-offs, 2019	0
Gross charge-offs, 2020	0
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	(111)
Revolving Converted to Term Loans	0
Total gross charge-offs	(111)
Total loans by risk category
Credit quality categories
Prior	1,059,173
2019	277,491
2020	461,213
2021	837,657
2022	1,107,579
2023	670,765
Revolving Loans	194,798
Revolving Converted to Term Loans	25,751
Total	4,634,427
Current period gross charge-offs
Gross charge-offs, prior	(1,035)
Gross charge-offs, 2019	0
Gross charge-offs, 2020	(830)
Gross charge-offs, 2021	(17)
Gross charge-offs, 2022	(8)
Gross charge-offs, 2023	(4)
Revolving Loans	(126)
Revolving Converted to Term Loans	(242)
Total gross charge-offs	(2,262)
Pass
Credit quality categories
Prior	1,035,412
2019	274,768
2020	460,644
2021	830,594
2022	1,101,448
2023	670,765
Revolving Loans	192,565
Revolving Converted to Term Loans	25,296
Total	4,591,492
Special Mentions
Credit quality categories
Prior	15,283
2019	587
2020	564
2021	6,429
2022	4,446
2023	0
Revolving Loans	545
Revolving Converted to Term Loans	409
Total	28,263
Substandard
Credit quality categories
Prior	8,478
2019	2,136
2020	5
2021	634
2022	1,685
2023	0
Revolving Loans	1,688
Revolving Converted to Term Loans	46
Total	14,672
Construction
Credit quality categories
Prior	23,649
2019	15,721
2020	14,773
2021	34,337
2022	101,844
2023	100,620
Revolving Loans	8,056
Revolving Converted to Term Loans	0
Total	299,000	246,319
Current period gross charge-offs
Gross charge-offs, prior	0
Gross charge-offs, 2019	0
Gross charge-offs, 2020	0
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	0
Revolving Converted to Term Loans	0
Total gross charge-offs	0	0
Construction | Pass
Credit quality categories
Prior	23,450
2019	15,721
2020	14,773
2021	34,325
2022	101,426
2023	100,620
Revolving Loans	8,056
Revolving Converted to Term Loans	0
Total	298,371
Construction | Substandard
Credit quality categories
Prior	199
2019	0
2020	0
2021	12
2022	418
2023	0
Revolving Loans	0
Revolving Converted to Term Loans	0
Total	629
Residential real estate
Credit quality categories
Prior	323,682
2019	54,643
2020	105,833
2021	251,772
2022	392,378
2023	239,914
Revolving Loans	121,342
Revolving Converted to Term Loans	874
Total	1,490,438	810,497
Current period gross charge-offs
Gross charge-offs, prior	0
Gross charge-offs, 2019	0
Gross charge-offs, 2020	0
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	(119)
Revolving Converted to Term Loans	0
Total gross charge-offs	(119)	(5)
Residential real estate | Pass
Credit quality categories
Prior	317,528
2019	54,387
2020	105,269
2021	251,269
2022	392,378
2023	239,914
Revolving Loans	119,777
Revolving Converted to Term Loans	874
Total	1,481,396
Residential real estate | Special Mentions
Credit quality categories
Prior	154
2019	256
2020	564
2021	503
2022	0
2023	0
Revolving Loans	192
Revolving Converted to Term Loans	0
Total	1,669
Residential real estate | Substandard
Credit quality categories
Prior	6,000
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	1,373
Revolving Converted to Term Loans	0
Total	7,373
Commercial real estate
Credit quality categories
Prior	687,147
2019	193,113
2020	311,980
2021	432,793
2022	432,686
2023	210,915
Revolving Loans	14,973
Revolving Converted to Term Loans	2,547
Total	2,286,154	1,065,409
Current period gross charge-offs
Gross charge-offs, prior	(512)
Gross charge-offs, 2019	0
Gross charge-offs, 2020	(814)
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	0
Revolving Converted to Term Loans	0
Total gross charge-offs	(1,326)	(6)
Commercial real estate | Pass
Credit quality categories
Prior	670,042
2019	190,753
2020	311,980
2021	426,750
2022	428,240
2023	210,915
Revolving Loans	14,873
Revolving Converted to Term Loans	2,138
Total	2,255,691
Commercial real estate | Special Mentions
Credit quality categories
Prior	14,986
2019	331
2020	0
2021	5,501
2022	4,446
2023	0
Revolving Loans	100
Revolving Converted to Term Loans	409
Total	25,773
Commercial real estate | Substandard
Credit quality categories
Prior	2,119
2019	2,029
2020	0
2021	542
2022	0
2023	0
Revolving Loans	0
Revolving Converted to Term Loans	0
Total	4,690
Commercial
Credit quality categories
Prior	24,074
2019	13,015
2020	14,464
2021	42,046
2022	36,384
2023	27,901
Revolving Loans	49,725
Revolving Converted to Term Loans	22,330
Total	229,939	147,856
Current period gross charge-offs
Gross charge-offs, prior	(1)
Gross charge-offs, 2019	0
Gross charge-offs, 2020
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	0
Revolving Converted to Term Loans	(242)
Total gross charge-offs	(243)	(546)
Commercial | Pass
Credit quality categories
Prior	23,771
2019	12,946
2020	14,464
2021	41,621
2022	35,897
2023	27,901
Revolving Loans	49,160
Revolving Converted to Term Loans	22,284
Total	228,044
Commercial | Special Mentions
Credit quality categories
Prior	143
2019	0
2020	0
2021	425
2022	0
2023	0
Revolving Loans	251
Revolving Converted to Term Loans	0
Total	819
Commercial | Substandard
Credit quality categories
Prior	160
2019	69
2020	0
2021	0
2022	487
2023	0
Revolving Loans	314
Revolving Converted to Term Loans	46
Total	1,076
Consumer
Credit quality categories
Prior	621
2019	999
2020	14,163
2021	76,709
2022	144,287
2023	91,415
Revolving Loans	702
Revolving Converted to Term Loans	0
Total	328,896	286,026
Current period gross charge-offs
Gross charge-offs, prior	(522)
Gross charge-offs, 2019	0
Gross charge-offs, 2020	(16)
Gross charge-offs, 2021	(17)
Gross charge-offs, 2022	(8)
Gross charge-offs, 2023	(4)
Revolving Loans	(7)
Revolving Converted to Term Loans	0
Total gross charge-offs	(574)	(31)
Consumer | Pass
Credit quality categories
Prior	621
2019	961
2020	14,158
2021	76,629
2022	143,507
2023	91,415
Revolving Loans	699
Revolving Converted to Term Loans	0
Total	327,990
Consumer | Special Mentions
Credit quality categories
Prior	0
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	2
Revolving Converted to Term Loans	0
Total	2
Consumer | Substandard
Credit quality categories
Prior	0
2019	38
2020	5
2021	80
2022	780
2023	0
Revolving Loans	1
Revolving Converted to Term Loans	0
Total	904
Credit Cards
Credit quality categories
Prior	0
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	6,583
Revolving Converted to Term Loans	0
Total	6,583	$ 0
Current period gross charge-offs
Gross charge-offs, prior	0
Gross charge-offs, 2019	0
Gross charge-offs, 2020	0
Gross charge-offs, 2021	0
Gross charge-offs, 2022	0
Gross charge-offs, 2023	0
Revolving Loans	(111)
Revolving Converted to Term Loans	0
Total gross charge-offs	(111)
Credit Cards | Performing
Credit quality categories
Prior	0
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	6,583
Revolving Converted to Term Loans	0
Total	6,583
Credit Cards | Non-Performing
Credit quality categories
Prior	0
2019	0
2020	0
2021	0
2022	0
2023	0
Revolving Loans	0
Revolving Converted to Term Loans	0
Total	$ 0