Loans - Schedule of Risk Categories of Loans by Class of Loans (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	$ 480,260		$ 2,103,118
One year prior to current fiscal year	2,131,234		1,690,049
Two years prior to current fiscal year	1,550,559		908,423
Three years prior to current fiscal year	886,406		1,991,362
Four years prior to current fiscal year	1,878,655		1,718,492
Prior	4,203,977		2,717,786
Revolving	1,413,372		1,401,340
Revolving Converted to Term	96,969		97,414
Total	12,641,432		12,627,984
Current fiscal year, Charge Offs	424		842
One year prior to current fiscal year, Charge Offs	21		201
Two years prior to current fiscal year, Charge Offs	28		262
Three years prior to current fiscal year, Charge Offs	106		3,752
Four years prior to current fiscal year, Charge Offs	198		1,573
Prior, Charge Offs	1,048		10,642
Revolving, Charge Offs	2,102		2,750
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	3,927	$ 8,277	20,022
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	24,696		122,236
One year prior to current fiscal year	186,224		332,530
Two years prior to current fiscal year	314,216		61,041
Three years prior to current fiscal year	56,595		44,062
Four years prior to current fiscal year	25,694		42,999
Prior	53,562		32,368
Revolving	84,375		88,694
Revolving Converted to Term	0		0
Total	745,362		723,930
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		115
Three years prior to current fiscal year, Charge Offs	0		0
Four years prior to current fiscal year, Charge Offs	0		24
Prior, Charge Offs	34		17
Revolving, Charge Offs	0		0
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	34	0	156
Construction and land development | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	24,696		121,237
One year prior to current fiscal year	185,161		332,530
Two years prior to current fiscal year	314,216		57,222
Three years prior to current fiscal year	56,399		41,967
Four years prior to current fiscal year	23,755		38,085
Prior	52,400		31,055
Revolving	83,201		87,508
Revolving Converted to Term	0		0
Total	739,828		709,604
Construction and land development | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	86		0
Four years prior to current fiscal year	15		4,914
Prior	90		348
Revolving	0		0
Revolving Converted to Term	0		0
Total	191		5,262
Construction and land development | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		999
One year prior to current fiscal year	1,063		0
Two years prior to current fiscal year	0		3,819
Three years prior to current fiscal year	110		2,095
Four years prior to current fiscal year	1,924		0
Prior	1,072		965
Revolving	1,174		1,186
Revolving Converted to Term	0		0
Total	5,343		9,064
Construction and land development | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	0		0
CRE - owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	78,791		405,841
One year prior to current fiscal year	370,820		191,291
Two years prior to current fiscal year	196,238		170,414
Three years prior to current fiscal year	168,192		254,833
Four years prior to current fiscal year	239,255		249,271
Prior	938,827		741,620
Revolving	29,762		30,355
Revolving Converted to Term	0		0
Total	2,021,885		2,043,625
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		238
Four years prior to current fiscal year, Charge Offs	16		0
Prior, Charge Offs	6		490
Revolving, Charge Offs	0		0
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	22	0	728
CRE - owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	78,791		405,841
One year prior to current fiscal year	361,476		180,447
Two years prior to current fiscal year	183,051		156,256
Three years prior to current fiscal year	150,522		235,989
Four years prior to current fiscal year	224,836		241,758
Prior	897,593		703,744
Revolving	28,633		29,882
Revolving Converted to Term	0		0
Total	1,924,902		1,953,917
CRE - owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		7,380
Two years prior to current fiscal year	7,982		2,816
Three years prior to current fiscal year	0		966
Four years prior to current fiscal year	1,216		5,319
Prior	17,957		12,838
Revolving	398		398
Revolving Converted to Term	0		0
Total	27,553		29,717
CRE - owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	9,344		3,464
Two years prior to current fiscal year	5,205		11,342
Three years prior to current fiscal year	17,670		17,878
Four years prior to current fiscal year	13,203		2,194
Prior	23,277		25,038
Revolving	731		75
Revolving Converted to Term	0		0
Total	69,430		59,991
CRE - owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	0		0
CRE - non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	129,971		704,003
One year prior to current fiscal year	708,921		538,770
Two years prior to current fiscal year	465,131		327,090
Three years prior to current fiscal year	324,699		932,797
Four years prior to current fiscal year	890,843		570,947
Prior	1,630,334		1,150,283
Revolving	28,104		31,102
Revolving Converted to Term	0		0
Total	4,178,003		4,254,992
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	16		420
Revolving, Charge Offs	0		0
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	16	320	420
CRE - non-owner occupied | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	129,971		704,003
One year prior to current fiscal year	707,606		538,748
Two years prior to current fiscal year	465,111		318,106
Three years prior to current fiscal year	309,582		848,500
Four years prior to current fiscal year	807,337		552,105
Prior	1,561,974		1,084,106
Revolving	28,104		31,102
Revolving Converted to Term	0		0
Total	4,009,685		4,076,670
CRE - non-owner occupied | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	1,315		22
Two years prior to current fiscal year	20		8,984
Three years prior to current fiscal year	8,934		44,738
Four years prior to current fiscal year	44,529		9,781
Prior	36,985		42,347
Revolving	0		0
Revolving Converted to Term	0		0
Total	91,783		105,872
CRE - non-owner occupied | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	6,183		39,559
Four years prior to current fiscal year	38,977		9,061
Prior	31,375		23,830
Revolving	0		0
Revolving Converted to Term	0		0
Total	76,535		72,450
CRE - non-owner occupied | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	0		0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	154,146		272,509
One year prior to current fiscal year	254,551		197,560
Two years prior to current fiscal year	181,063		185,877
Three years prior to current fiscal year	180,750		480,228
Four years prior to current fiscal year	473,402		615,787
Prior	1,166,886		576,842
Revolving	654,742		672,642
Revolving Converted to Term	96,969		97,414
Total	3,162,509		3,098,859
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		145
Four years prior to current fiscal year, Charge Offs	164		210
Prior, Charge Offs	94		36
Revolving, Charge Offs	0		19
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	258	1	410
Residential real estate | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	154,146		272,509
One year prior to current fiscal year	253,898		196,766
Two years prior to current fiscal year	179,979		185,686
Three years prior to current fiscal year	179,019		476,581
Four years prior to current fiscal year	468,525		610,708
Prior	1,150,089		569,549
Revolving	639,360		662,764
Revolving Converted to Term	93,887		96,123
Total	3,118,903		3,070,686
Residential real estate | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	601		476
Two years prior to current fiscal year	531		78
Three years prior to current fiscal year	0		1,527
Four years prior to current fiscal year	448		0
Prior	2,332		663
Revolving	3,697		5,068
Revolving Converted to Term	486		174
Total	8,095		7,986
Residential real estate | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	52		318
Two years prior to current fiscal year	553		113
Three years prior to current fiscal year	1,731		2,120
Four years prior to current fiscal year	4,429		5,079
Prior	14,465		6,630
Revolving	11,685		4,810
Revolving Converted to Term	2,596		1,117
Total	35,511		20,187
Residential real estate | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	0		0
Commercial and financial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	88,576		582,118
One year prior to current fiscal year	596,176		416,136
Two years prior to current fiscal year	381,228		154,375
Three years prior to current fiscal year	148,183		257,738
Four years prior to current fiscal year	229,380		224,365
Prior	367,595		180,174
Revolving	541,980		506,083
Revolving Converted to Term	0		0
Total	2,353,118		2,320,989
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		85
Three years prior to current fiscal year, Charge Offs	0		2,075
Four years prior to current fiscal year, Charge Offs	0		1,231
Prior, Charge Offs	876		9,637
Revolving, Charge Offs	2,021		2,493
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	2,897	6,469	15,521
Commercial and financial | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	88,576		582,118
One year prior to current fiscal year	595,961		414,134
Two years prior to current fiscal year	379,493		151,321
Three years prior to current fiscal year	144,653		252,087
Four years prior to current fiscal year	224,473		215,002
Prior	347,927		167,651
Revolving	532,854		495,663
Revolving Converted to Term	0		0
Total	2,313,937		2,277,976
Commercial and financial | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	215		1,286
Two years prior to current fiscal year	813		110
Three years prior to current fiscal year	53		584
Four years prior to current fiscal year	588		2,229
Prior	3,249		6,312
Revolving	3,818		3,570
Revolving Converted to Term	0		0
Total	8,736		14,091
Commercial and financial | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		716
Two years prior to current fiscal year	922		2,944
Three years prior to current fiscal year	3,477		5,067
Four years prior to current fiscal year	4,319		6,538
Prior	14,021		6,211
Revolving	5,308		6,850
Revolving Converted to Term	0		0
Total	28,047		28,326
Commercial and financial | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		596
Prior	2,398		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	2,398		596
Consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	4,080		16,411
One year prior to current fiscal year	14,542		13,762
Two years prior to current fiscal year	12,683		9,626
Three years prior to current fiscal year	7,987		21,704
Four years prior to current fiscal year	20,081		15,123
Prior	46,773		36,499
Revolving	74,409		72,464
Revolving Converted to Term	0		0
Total	180,555		185,589
Current fiscal year, Charge Offs	424		842
One year prior to current fiscal year, Charge Offs	21		201
Two years prior to current fiscal year, Charge Offs	28		62
Three years prior to current fiscal year, Charge Offs	106		1,294
Four years prior to current fiscal year, Charge Offs	18		108
Prior, Charge Offs	22		42
Revolving, Charge Offs	81		238
Revolving Converted to Term, Charge Offs	0		0
Total, Charge Offs	700	$ 1,487	2,787
Consumer | Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	4,080		16,392
One year prior to current fiscal year	14,452		13,716
Two years prior to current fiscal year	12,589		9,603
Three years prior to current fiscal year	7,968		19,441
Four years prior to current fiscal year	18,083		15,123
Prior	45,962		36,026
Revolving	74,248		72,246
Revolving Converted to Term	0		0
Total	177,382		182,547
Consumer | Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		15
One year prior to current fiscal year	74		33
Two years prior to current fiscal year	94		0
Three years prior to current fiscal year	0		2
Four years prior to current fiscal year	44		0
Prior	13		12
Revolving	130		168
Revolving Converted to Term	0		0
Total	355		230
Consumer | Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		4
One year prior to current fiscal year	16		13
Two years prior to current fiscal year	0		23
Three years prior to current fiscal year	19		2,261
Four years prior to current fiscal year	1,954		0
Prior	798		461
Revolving	31		50
Revolving Converted to Term	0		0
Total	2,818		2,812
Consumer | Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0		0
One year prior to current fiscal year	0		0
Two years prior to current fiscal year	0		0
Three years prior to current fiscal year	0		0
Four years prior to current fiscal year	0		0
Prior	0		0
Revolving	0		0
Revolving Converted to Term	0		0
Total	$ 0		$ 0