Loans - Risk Categories of Loans by Class of Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 510,128		$ 510,128		$ 974,245
One year prior to current fiscal year	906,916		906,916		2,264,733
Two years prior to current fiscal year	2,228,256		2,228,256		2,112,263
Three years prior to current fiscal year	1,971,922		1,971,922		804,167
Four years prior to current fiscal year	751,176		751,176		797,510
Prior	2,578,099		2,578,099		2,015,489
Revolving	1,092,011		1,092,011		1,094,533
Total	10,038,508		10,038,508		10,062,940
Current fiscal year, Charge Offs			208		1,272
One year prior to current fiscal year, Charge Offs			220		2,027
Two years prior to current fiscal year, Charge Offs			4,412		2,888
Three years prior to current fiscal year, Charge Offs			7,647		3,413
Four years prior to current fiscal year, Charge Offs			297		845
Prior, Charge Offs			2,584		13,409
Revolving, Charge Offs			685		941
Total, Charge Offs	11,425	$ 2,740	16,053	$ 6,345	24,795
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	26,705		26,705		80,750
One year prior to current fiscal year	107,013		107,013		296,450
Two years prior to current fiscal year	206,802		206,802		107,158
Three years prior to current fiscal year	70,399		70,399		20,199
Four years prior to current fiscal year	9,746		9,746		21,942
Prior	40,996		40,996		29,794
Revolving	131,873		131,873		211,329
Total	593,534		593,534		767,622
Current fiscal year, Charge Offs			0		0
One year prior to current fiscal year, Charge Offs			0		0
Two years prior to current fiscal year, Charge Offs			0		0
Three years prior to current fiscal year, Charge Offs			0		0
Four years prior to current fiscal year, Charge Offs			0		0
Prior, Charge Offs			1		0
Revolving, Charge Offs			0		0
Total, Charge Offs	1	0	1	0	0
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	26,705		26,705		80,750
One year prior to current fiscal year	107,013		107,013		295,043
Two years prior to current fiscal year	205,837		205,837		107,158
Three years prior to current fiscal year	69,649		69,649		20,199
Four years prior to current fiscal year	9,746		9,746		21,942
Prior	39,959		39,959		28,902
Revolving	131,873		131,873		210,716
Total	590,782		590,782		764,710
Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		1,407
Two years prior to current fiscal year	770		770		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	78		78		393
Revolving	0		0		289
Total	848		848		2,089
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	195		195		0
Three years prior to current fiscal year	750		750		0
Four years prior to current fiscal year	0		0		0
Prior	959		959		499
Revolving	0		0		324
Total	1,904		1,904		823
Construction and land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	0		0		0
Commercial real estate - owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	66,408		66,408		145,642
One year prior to current fiscal year	141,851		141,851		278,567
Two years prior to current fiscal year	285,937		285,937		284,262
Three years prior to current fiscal year	272,863		272,863		172,466
Four years prior to current fiscal year	170,670		170,670		179,537
Prior	699,411		699,411		572,790
Revolving	19,251		19,251		37,017
Total	1,656,391		1,656,391		1,670,281
Current fiscal year, Charge Offs			0		0
One year prior to current fiscal year, Charge Offs			0		0
Two years prior to current fiscal year, Charge Offs			179		0
Three years prior to current fiscal year, Charge Offs			0		0
Four years prior to current fiscal year, Charge Offs			0		0
Prior, Charge Offs			123		0
Revolving, Charge Offs			0		0
Total, Charge Offs	302	0	302	0	0
Commercial real estate - owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	64,345		64,345		145,642
One year prior to current fiscal year	140,778		140,778		272,384
Two years prior to current fiscal year	280,676		280,676		281,870
Three years prior to current fiscal year	270,336		270,336		165,475
Four years prior to current fiscal year	161,759		161,759		171,897
Prior	673,940		673,940		551,177
Revolving	19,251		19,251		36,952
Total	1,611,085		1,611,085		1,625,397
Commercial real estate - owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	2,063		2,063		0
One year prior to current fiscal year	0		0		159
Two years prior to current fiscal year	157		157		1,335
Three years prior to current fiscal year	1,304		1,304		0
Four years prior to current fiscal year	2,028		2,028		524
Prior	5,273		5,273		9,122
Revolving	0		0		1
Total	10,825		10,825		11,141
Commercial real estate - owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	1,073		1,073		6,024
Two years prior to current fiscal year	5,104		5,104		1,057
Three years prior to current fiscal year	1,223		1,223		6,991
Four years prior to current fiscal year	6,883		6,883		7,116
Prior	20,198		20,198		12,491
Revolving	0		0		64
Total	34,481		34,481		33,743
Commercial real estate - owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	0		0		0
Commercial real estate - non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	189,579		189,579		234,226
One year prior to current fiscal year	234,744		234,744		814,591
Two years prior to current fiscal year	877,513		877,513		668,314
Three years prior to current fiscal year	649,836		649,836		301,109
Four years prior to current fiscal year	287,946		287,946		407,458
Prior	1,164,213		1,164,213		867,988
Revolving	19,435		19,435		26,204
Total	3,423,266		3,423,266		3,319,890
Current fiscal year, Charge Offs			0		0
One year prior to current fiscal year, Charge Offs			0		0
Two years prior to current fiscal year, Charge Offs			0		11
Three years prior to current fiscal year, Charge Offs			0		0
Four years prior to current fiscal year, Charge Offs			90		0
Prior, Charge Offs			13		0
Revolving, Charge Offs			0		109
Total, Charge Offs	19	0	103	109	120
Commercial real estate - non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	189,579		189,579		234,226
One year prior to current fiscal year	234,744		234,744		784,525
Two years prior to current fiscal year	847,405		847,405		657,499
Three years prior to current fiscal year	636,745		636,745		288,747
Four years prior to current fiscal year	259,785		259,785		397,031
Prior	1,116,502		1,116,502		841,062
Revolving	19,435		19,435		25,954
Total	3,304,195		3,304,195		3,229,044
Commercial real estate - non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		29,381
Two years prior to current fiscal year	20,317		20,317		2,092
Three years prior to current fiscal year	6,370		6,370		2,964
Four years prior to current fiscal year	20,264		20,264		0
Prior	26,249		26,249		12,120
Revolving	0		0		0
Total	73,200		73,200		46,557
Commercial real estate - non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		685
Two years prior to current fiscal year	9,791		9,791		8,723
Three years prior to current fiscal year	6,721		6,721		9,398
Four years prior to current fiscal year	7,897		7,897		10,427
Prior	21,462		21,462		14,806
Revolving	0		0		250
Total	45,871		45,871		44,289
Commercial real estate - non-owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	0		0		0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	68,373		68,373		177,303
One year prior to current fiscal year	174,782		174,782		450,366
Two years prior to current fiscal year	494,556		494,556		650,005
Three years prior to current fiscal year	651,183		651,183		161,012
Four years prior to current fiscal year	159,042		159,042		95,660
Prior	479,602		479,602		423,161
Revolving	527,782		527,782		488,185
Total	2,555,320		2,555,320		2,445,692
Current fiscal year, Charge Offs			0		0
One year prior to current fiscal year, Charge Offs			0		0
Two years prior to current fiscal year, Charge Offs			0		0
Three years prior to current fiscal year, Charge Offs			0		44
Four years prior to current fiscal year, Charge Offs			40		0
Prior, Charge Offs			56		159
Revolving, Charge Offs			26		153
Total, Charge Offs	122	109	122	268	356
Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	68,373		68,373		177,000
One year prior to current fiscal year	174,105		174,105		450,366
Two years prior to current fiscal year	494,354		494,354		649,086
Three years prior to current fiscal year	650,808		650,808		160,889
Four years prior to current fiscal year	158,933		158,933		95,288
Prior	471,713		471,713		413,719
Revolving	511,930		511,930		479,047
Total	2,530,216		2,530,216		2,425,395
Residential real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		208
One year prior to current fiscal year	418		418		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		58
Prior	553		553		482
Revolving	9,083		9,083		4,004
Total	10,054		10,054		4,752
Residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		95
One year prior to current fiscal year	259		259		0
Two years prior to current fiscal year	202		202		919
Three years prior to current fiscal year	375		375		123
Four years prior to current fiscal year	109		109		314
Prior	7,336		7,336		8,960
Revolving	6,769		6,769		5,134
Total	15,050		15,050		15,545
Residential real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	0		0		0
Commercial and financial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	151,632		151,632		315,696
One year prior to current fiscal year	231,716		231,716		356,796
Two years prior to current fiscal year	315,767		315,767		355,820
Three years prior to current fiscal year	291,635		291,635		129,454
Four years prior to current fiscal year	107,723		107,723		72,557
Prior	152,483		152,483		102,305
Revolving	331,334		331,334		275,260
Total	1,582,290		1,582,290		1,607,888
Current fiscal year, Charge Offs			0		1,198
One year prior to current fiscal year, Charge Offs			0		117
Two years prior to current fiscal year, Charge Offs			2,646		659
Three years prior to current fiscal year, Charge Offs			5,092		3,007
Four years prior to current fiscal year, Charge Offs			0		582
Prior, Charge Offs			2,335		12,584
Revolving, Charge Offs			533		418
Total, Charge Offs	7,950	727	10,606	3,369	18,565
Commercial and financial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	151,632		151,632		315,560
One year prior to current fiscal year	230,663		230,663		336,071
Two years prior to current fiscal year	304,742		304,742		333,113
Three years prior to current fiscal year	270,710		270,710		127,069
Four years prior to current fiscal year	100,737		100,737		66,165
Prior	138,586		138,586		89,002
Revolving	323,386		323,386		269,108
Total	1,520,456		1,520,456		1,536,088
Commercial and financial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		136
One year prior to current fiscal year	1,053		1,053		2,167
Two years prior to current fiscal year	1,117		1,117		1,064
Three years prior to current fiscal year	3,173		3,173		1,005
Four years prior to current fiscal year	569		569		503
Prior	1,204		1,204		1,103
Revolving	2,400		2,400		2,191
Total	9,516		9,516		8,169
Commercial and financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		18,558
Two years prior to current fiscal year	4,171		4,171		21,643
Three years prior to current fiscal year	12,124		12,124		1,380
Four years prior to current fiscal year	6,417		6,417		5,889
Prior	12,693		12,693		11,842
Revolving	5,548		5,548		3,961
Total	40,953		40,953		63,273
Commercial and financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	5,737		5,737		0
Three years prior to current fiscal year	5,628		5,628		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		358
Revolving	0		0		0
Total	11,365		11,365		358
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	7,431		7,431		20,628
One year prior to current fiscal year	16,810		16,810		67,963
Two years prior to current fiscal year	47,681		47,681		46,704
Three years prior to current fiscal year	36,006		36,006		19,927
Four years prior to current fiscal year	16,049		16,049		20,356
Prior	41,394		41,394		19,451
Revolving	62,336		62,336		56,538
Total	227,707		227,707		251,567
Current fiscal year, Charge Offs			208		74
One year prior to current fiscal year, Charge Offs			220		1,910
Two years prior to current fiscal year, Charge Offs			1,587		2,218
Three years prior to current fiscal year, Charge Offs			2,555		362
Four years prior to current fiscal year, Charge Offs			167		263
Prior, Charge Offs			56		666
Revolving, Charge Offs			126		261
Total, Charge Offs	3,031	$ 1,904	4,919	$ 2,599	5,754
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	7,343		7,343		20,557
One year prior to current fiscal year	16,572		16,572		66,699
Two years prior to current fiscal year	44,213		44,213		45,534
Three years prior to current fiscal year	34,424		34,424		19,747
Four years prior to current fiscal year	15,967		15,967		20,300
Prior	40,885		40,885		19,080
Revolving	62,330		62,330		56,473
Total	221,734		221,734		248,390
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	88		88		5
One year prior to current fiscal year	0		0		334
Two years prior to current fiscal year	862		862		279
Three years prior to current fiscal year	355		355		77
Four years prior to current fiscal year	2		2		5
Prior	152		152		194
Revolving	6		6		65
Total	1,465		1,465		959
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		66
One year prior to current fiscal year	238		238		930
Two years prior to current fiscal year	2,606		2,606		891
Three years prior to current fiscal year	1,227		1,227		103
Four years prior to current fiscal year	80		80		51
Prior	357		357		177
Revolving	0		0		0
Total	4,508		4,508		2,218
Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	$ 0		$ 0		$ 0