Loans - Risk Categories of Loans by Class of Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 550,336		$ 550,336		$ 1,771,386
One year prior to current fiscal year	2,283,095		2,283,095		1,972,420
Two years prior to current fiscal year	2,236,186		2,236,186		750,817
Three years prior to current fiscal year	880,281		880,281		749,534
Four years prior to current fiscal year	868,188		868,188		545,447
Prior	2,203,779		2,203,779		1,469,313
Revolving	1,096,054		1,096,054		883,925
Total	10,117,919		10,117,919		8,144,724
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			672
Two years prior to current fiscal year, Charge Offs			1,684
Three years prior to current fiscal year, Charge Offs			1,761
Four years prior to current fiscal year, Charge Offs			316
Prior, Charge Offs			1,377
Revolving, Charge Offs			535
Total, Charge Offs	2,740	$ 452	6,345	$ 1,117
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	550,202		550,202		1,754,920
One year prior to current fiscal year	2,272,009		2,272,009		1,945,692
Two years prior to current fiscal year	2,195,151		2,195,151		720,324
Three years prior to current fiscal year	851,327		851,327		724,493
Four years prior to current fiscal year	835,706		835,706		529,942
Prior	2,121,966		2,121,966		1,430,636
Revolving	1,081,488		1,081,488		864,846
Total	9,907,849		9,907,849		7,972,735
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	134		134		16,461
One year prior to current fiscal year	8,246		8,246		17,132
Two years prior to current fiscal year	10,344		10,344		3,254
Three years prior to current fiscal year	9,097		9,097		13,718
Four years prior to current fiscal year	17,986		17,986		2,770
Prior	25,614		25,614		8,506
Revolving	10,239		10,239		3,927
Total	81,660		81,660		65,768
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	2,259		2,259		9,486
Two years prior to current fiscal year	26,218		26,218		20,935
Three years prior to current fiscal year	18,302		18,302		8,929
Four years prior to current fiscal year	10,999		10,999		8,650
Prior	20,402		20,402		14,073
Revolving	2,690		2,690		13,199
Total	80,870		80,870		75,272
Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		5
One year prior to current fiscal year	581		581		110
Two years prior to current fiscal year	4,473		4,473		6,304
Three years prior to current fiscal year	1,555		1,555		2,394
Four years prior to current fiscal year	3,497		3,497		4,085
Prior	35,797		35,797		16,098
Revolving	1,637		1,637		1,953
Total	47,540		47,540		30,949
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
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	30,200		30,200		237,727
One year prior to current fiscal year	266,621		266,621		219,469
Two years prior to current fiscal year	180,473		180,473		18,239
Three years prior to current fiscal year	36,370		36,370		27,753
Four years prior to current fiscal year	25,881		25,881		13,742
Prior	28,053		28,053		19,427
Revolving	226,773		226,773		50,975
Total	794,371		794,371		587,332
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			0
Two years prior to current fiscal year, Charge Offs			0
Three years prior to current fiscal year, Charge Offs			0
Four years prior to current fiscal year, Charge Offs			0
Prior, Charge Offs			0
Revolving, Charge Offs			0
Total, Charge Offs	0	0	0	0
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	30,200		30,200		223,204
One year prior to current fiscal year	265,371		265,371		209,738
Two years prior to current fiscal year	170,788		170,788		18,239
Three years prior to current fiscal year	36,370		36,370		24,600
Four years prior to current fiscal year	25,881		25,881		12,783
Prior	27,596		27,596		19,022
Revolving	226,567		226,567		50,960
Total	782,773		782,773		558,546
Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		14,523
One year prior to current fiscal year	1,250		1,250		452
Two years prior to current fiscal year	0		0		0
Three years prior to current fiscal year	0		0		3,153
Four years prior to current fiscal year	0		0		0
Prior	396		396		0
Revolving	0		0		15
Total	1,646		1,646		18,143
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		9,227
Two years prior to current fiscal year	9,685		9,685		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		959
Prior	0		0		0
Revolving	0		0		0
Total	9,685		9,685		10,186
Construction and land development | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		52
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	61		61		405
Revolving	206		206		0
Total	267		267		457
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	57,149		57,149		216,147
One year prior to current fiscal year	274,183		274,183		251,638
Two years prior to current fiscal year	300,807		300,807		183,111
Three years prior to current fiscal year	182,783		182,783		192,625
Four years prior to current fiscal year	199,658		199,658		124,983
Prior	624,786		624,786		477,545
Revolving	30,003		30,003		32,253
Total	1,669,369		1,669,369		1,478,302
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			0
Two years prior to current fiscal year, Charge Offs			0
Three years prior to current fiscal year, Charge Offs			0
Four years prior to current fiscal year, Charge Offs			0
Prior, Charge Offs			0
Revolving, Charge Offs			0
Total, Charge Offs	0	0	0	0
Commercial real estate - owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	57,149		57,149		215,453
One year prior to current fiscal year	273,495		273,495		251,638
Two years prior to current fiscal year	298,639		298,639		180,081
Three years prior to current fiscal year	175,708		175,708		185,286
Four years prior to current fiscal year	191,891		191,891		121,568
Prior	608,264		608,264		467,963
Revolving	29,902		29,902		32,253
Total	1,635,048		1,635,048		1,454,242
Commercial real estate - owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		694
One year prior to current fiscal year	0		0		0
Two years prior to current fiscal year	2,168		2,168		2,363
Three years prior to current fiscal year	0		0		4,403
Four years prior to current fiscal year	4,866		4,866		2,548
Prior	6,674		6,674		2,869
Revolving	101		101		0
Total	13,809		13,809		12,877
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	688		688		0
Two years prior to current fiscal year	0		0		667
Three years prior to current fiscal year	7,075		7,075		2,625
Four years prior to current fiscal year	2,584		2,584		573
Prior	7,357		7,357		4,444
Revolving	0		0		0
Total	17,704		17,704		8,309
Commercial real estate - owner occupied | Substandard Impaired
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		311
Four years prior to current fiscal year	317		317		294
Prior	2,491		2,491		2,269
Revolving	0		0		0
Total	2,808		2,808		2,874
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	150,604		150,604		593,364
One year prior to current fiscal year	836,134		836,134		546,911
Two years prior to current fiscal year	650,986		650,986		252,787
Three years prior to current fiscal year	314,827		314,827		338,460
Four years prior to current fiscal year	428,890		428,890		233,622
Prior	942,110		942,110		589,304
Revolving	46,660		46,660		35,326
Total	3,370,211		3,370,211		2,589,774
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			0
Two years prior to current fiscal year, Charge Offs			0
Three years prior to current fiscal year, Charge Offs			0
Four years prior to current fiscal year, Charge Offs			0
Prior, Charge Offs			0
Revolving, Charge Offs			109
Total, Charge Offs	0	0	109	0
Commercial real estate - non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	150,604		150,604		593,364
One year prior to current fiscal year	835,973		835,973		530,462
Two years prior to current fiscal year	649,707		649,707		231,693
Three years prior to current fiscal year	299,717		299,717		331,173
Four years prior to current fiscal year	411,735		411,735		228,077
Prior	914,410		914,410		575,656
Revolving	46,412		46,412		35,326
Total	3,308,558		3,308,558		2,525,751
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	161		161		16,257
Two years prior to current fiscal year	1,089		1,089		735
Three years prior to current fiscal year	7,957		7,957		5,438
Four years prior to current fiscal year	12,324		12,324		0
Prior	13,924		13,924		4,975
Revolving	0		0		0
Total	35,455		35,455		27,405
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		192
Two years prior to current fiscal year	190		190		19,315
Three years prior to current fiscal year	6,085		6,085		0
Four years prior to current fiscal year	2,982		2,982		5,515
Prior	8,270		8,270		7,412
Revolving	248		248		0
Total	17,775		17,775		32,434
Commercial real estate - non-owner occupied | Substandard Impaired
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		1,044
Three years prior to current fiscal year	1,068		1,068		1,849
Four years prior to current fiscal year	1,849		1,849		30
Prior	5,506		5,506		1,261
Revolving	0		0		0
Total	8,423		8,423		4,184
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	120,812		120,812		270,054
One year prior to current fiscal year	424,322		424,322		552,950
Two years prior to current fiscal year	642,208		642,208		122,062
Three years prior to current fiscal year	167,349		167,349		77,132
Four years prior to current fiscal year	99,841		99,841		98,008
Prior	455,676		455,676		302,994
Revolving	486,144		486,144		426,303
Total	2,396,352		2,396,352		1,849,503
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			0
Two years prior to current fiscal year, Charge Offs			0
Three years prior to current fiscal year, Charge Offs			0
Four years prior to current fiscal year, Charge Offs			0
Prior, Charge Offs			159
Revolving, Charge Offs			109
Total, Charge Offs	109		268	1
Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	120,812		120,812		270,054
One year prior to current fiscal year	424,322		424,322		552,950
Two years prior to current fiscal year	641,362		641,362		121,879
Three years prior to current fiscal year	167,176		167,176		77,100
Four years prior to current fiscal year	99,298		99,298		97,900
Prior	445,280		445,280		292,867
Revolving	479,136		479,136		423,764
Total	2,377,386		2,377,386		1,836,514
Residential real estate | Special Mention
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		50
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	82		82		25
Prior	1,057		1,057		269
Revolving	5,574		5,574		884
Total	6,713		6,713		1,228
Residential real estate | 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	0		0		0
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	31		31		343
Revolving	357		357		85
Total	388		388		428
Residential real estate | Substandard Impaired
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	846		846		133
Three years prior to current fiscal year	173		173		32
Four years prior to current fiscal year	461		461		83
Prior	9,308		9,308		9,515
Revolving	1,077		1,077		1,570
Total	11,865		11,865		11,333
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	176,697		176,697		361,082
One year prior to current fiscal year	398,784		398,784		320,855
Two years prior to current fiscal year	401,847		401,847		146,607
Three years prior to current fiscal year	154,051		154,051		84,487
Four years prior to current fiscal year	89,127		89,127		63,364
Prior	129,381		129,381		63,135
Revolving	261,008		261,008		309,106
Total	1,610,895		1,610,895		1,348,636
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			115
Two years prior to current fiscal year, Charge Offs			109
Three years prior to current fiscal year, Charge Offs			1,484
Four years prior to current fiscal year, Charge Offs			265
Prior, Charge Offs			1,196
Revolving, Charge Offs			200
Total, Charge Offs	727	253	3,369	822
Commercial and financial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	176,563		176,563		359,833
One year prior to current fiscal year	391,471		391,471		320,307
Two years prior to current fiscal year	376,754		376,754		140,450
Three years prior to current fiscal year	147,594		147,594		77,562
Four years prior to current fiscal year	82,400		82,400		57,924
Prior	103,176		103,176		58,648
Revolving	254,426		254,426		292,818
Total	1,532,384		1,532,384		1,307,542
Commercial and financial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	134		134		1,244
One year prior to current fiscal year	5,738		5,738		423
Two years prior to current fiscal year	6,217		6,217		106
Three years prior to current fiscal year	1,063		1,063		474
Four years prior to current fiscal year	494		494		195
Prior	3,563		3,563		259
Revolving	4,479		4,479		2,998
Total	21,688		21,688		5,699
Commercial and financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	1,571		1,571		67
Two years prior to current fiscal year	16,343		16,343		942
Three years prior to current fiscal year	5,142		5,142		6,304
Four years prior to current fiscal year	5,433		5,433		1,603
Prior	4,744		4,744		1,683
Revolving	2,011		2,011		13,114
Total	35,244		35,244		23,713
Commercial and financial | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		5
One year prior to current fiscal year	4		4		58
Two years prior to current fiscal year	2,533		2,533		5,109
Three years prior to current fiscal year	252		252		147
Four years prior to current fiscal year	800		800		3,642
Prior	17,898		17,898		2,545
Revolving	92		92		176
Total	21,579		21,579		11,682
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	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
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	14,874		14,874		93,012
One year prior to current fiscal year	83,051		83,051		77,889
Two years prior to current fiscal year	57,654		57,654		28,011
Three years prior to current fiscal year	22,473		22,473		29,077
Four years prior to current fiscal year	24,791		24,791		11,728
Prior	23,773		23,773		16,908
Revolving	45,466		45,466		29,962
Total	272,082		272,082		286,587
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			557
Two years prior to current fiscal year, Charge Offs			1,575
Three years prior to current fiscal year, Charge Offs			277
Four years prior to current fiscal year, Charge Offs			51
Prior, Charge Offs			22
Revolving, Charge Offs			117
Total, Charge Offs	1,904	$ 199	2,599	$ 294
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	14,874		14,874		93,012
One year prior to current fiscal year	81,377		81,377		77,889
Two years prior to current fiscal year	55,690		55,690		27,982
Three years prior to current fiscal year	22,334		22,334		28,772
Four years prior to current fiscal year	24,501		24,501		11,690
Prior	23,240		23,240		16,480
Revolving	45,045		45,045		29,725
Total	267,061		267,061		285,550
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	1,097		1,097		0
Two years prior to current fiscal year	870		870		0
Three years prior to current fiscal year	77		77		250
Four years prior to current fiscal year	220		220		2
Prior	0		0		134
Revolving	85		85		30
Total	2,349		2,349		416
Consumer | 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	0		0		11
Three years prior to current fiscal year	0		0		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		191
Revolving	74		74		0
Total	74		74		202
Consumer | Substandard Impaired
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	577		577		0
Two years prior to current fiscal year	1,094		1,094		18
Three years prior to current fiscal year	62		62		55
Four years prior to current fiscal year	70		70		36
Prior	533		533		103
Revolving	262		262		207
Total	2,598		2,598		419
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
PPP Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		2,708
Two years prior to current fiscal year	2,211		2,211		1,882
Three years prior to current fiscal year	2,428		2,428		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	4,639		4,639		4,590
Current fiscal year, Charge Offs			0
One year prior to current fiscal year, Charge Offs			0
Two years prior to current fiscal year, Charge Offs			0
Three years prior to current fiscal year, Charge Offs			0
Four years prior to current fiscal year, Charge Offs			0
Prior, Charge Offs			0
Revolving, Charge Offs			0
Total, Charge Offs			0
PPP Loans | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0		0
One year prior to current fiscal year	0		0		2,708
Two years prior to current fiscal year	2,211		2,211		1,882
Three years prior to current fiscal year	2,428		2,428		0
Four years prior to current fiscal year	0		0		0
Prior	0		0		0
Revolving	0		0		0
Total	4,639		4,639		4,590
PPP Loans | 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	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
PPP Loans | Substandard Impaired
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