Loans - Past Due Financing Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 10,205,281	$ 10,062,940
Nonaccrual	80,857	65,104
Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,815,635	3,227,169
Nonaccrual	25,469	14,256
PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	211,460	264,317
Nonaccrual	27,977	25,976
Current
Financing Receivable, Past Due [Line Items]
Loans	10,073,730	9,967,309
Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,766,170	3,192,780
Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	176,114	237,328
Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	37,607	25,257
Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	18,252	17,363
Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,829	682
Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,802	4,091
Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,979	1,964
Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	168	177
Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	5,285	1,179
Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,765	806
Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,372	154
Construction and land development
Financing Receivable, Past Due [Line Items]
Loans	595,753	767,622
Nonaccrual	838	824
Construction and land development | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	99,756	247,654
Nonaccrual	526	800
Construction and land development | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	539	542
Nonaccrual	94	0
Construction and land development | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	97,011	245,674
Construction and land development | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	45	442
Construction and land development | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,219	891
Construction and land development | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	400	100
Construction and land development | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	289
Construction and land development | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction and land development | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction and land development | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,676,814	1,670,281
Nonaccrual	9,666	9,684
Commercial real estate - owner occupied | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	493,986	552,627
Nonaccrual	2,736	5,429
Commercial real estate - owner occupied | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	32,019	38,021
Nonaccrual	4,715	3,354
Commercial real estate - owner occupied | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	489,257	545,374
Commercial real estate - owner occupied | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	27,304	34,667
Commercial real estate - owner occupied | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,380	1,691
Commercial real estate - owner occupied | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	613	133
Commercial real estate - owner occupied | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - owner occupied | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans	3,573,076	3,319,890
Nonaccrual	28,706	8,735
Commercial real estate - non-owner occupied | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,214,092	1,323,222
Nonaccrual	7,766	1,545
Commercial real estate - non-owner occupied | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	130,847	152,080
Nonaccrual	17,687	3,772
Commercial real estate - non-owner occupied | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,203,625	1,310,100
Commercial real estate - non-owner occupied | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	107,265	148,308
Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,059	11,577
Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,554	0
Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	642	0
Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	3,341	0
Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	2,564,903	2,445,692
Nonaccrual	21,069	9,986
Residential real estate | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	734,399	710,129
Nonaccrual	10,576	2,085
Residential real estate | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	18,563	20,815
Nonaccrual	1,452	1,072
Residential real estate | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	713,224	704,417
Residential real estate | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	16,880	18,923
Residential real estate | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	9,684	2,586
Residential real estate | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	63	497
Residential real estate | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	269	888
Residential real estate | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	168	169
Residential real estate | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	646	153
Residential real estate | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	154
Commercial and financial
Financing Receivable, Past Due [Line Items]
Loans	1,575,228	1,607,888
Nonaccrual	19,104	34,693
Commercial and financial | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	213,109	318,683
Nonaccrual	2,949	3,333
Commercial and financial | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	29,180	52,115
Nonaccrual	3,979	17,778
Commercial and financial | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	208,981	315,229
Commercial and financial | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	24,367	34,337
Commercial and financial | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	395	50
Commercial and financial | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	803	0
Commercial and financial | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	749	36
Commercial and financial | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Commercial and financial | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	35	35
Commercial and financial | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	31	0
Consumer
Financing Receivable, Past Due [Line Items]
Loans	219,507	251,567
Nonaccrual	1,474	1,182
Consumer | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	60,293	74,854
Nonaccrual	916	1,064
Consumer | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	312	744
Nonaccrual	50	0
Consumer | Current | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	54,072	71,986
Consumer | Current | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	253	651
Consumer | Accruing 30-59 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	2,515	568
Consumer | Accruing 30-59 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	9	85
Consumer | Accruing 60-89 Days Past Due | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,706	618
Consumer | Accruing 60-89 Days Past Due | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	8
Consumer | Accruing Greater Than 90 Days | Acquired Non-PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	1,084	618
Consumer | Accruing Greater Than 90 Days | PCD Loans
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans
Financing Receivable, Past Due [Line Items]
Loans	7,178,186	6,571,454
Nonaccrual	27,411	24,872
Portfolio Loans | Current
Financing Receivable, Past Due [Line Items]
Loans	7,131,446	6,537,201
Portfolio Loans | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	15,526	7,212
Portfolio Loans | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,655	1,950
Portfolio Loans | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	148	219
Portfolio Loans | Construction and land development
Financing Receivable, Past Due [Line Items]
Loans	495,458	519,426
Nonaccrual	218	24
Portfolio Loans | Construction and land development | Current
Financing Receivable, Past Due [Line Items]
Loans	495,240	519,383
Portfolio Loans | Construction and land development | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	19
Portfolio Loans | Construction and land development | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Construction and land development | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,150,809	1,079,633
Nonaccrual	2,215	901
Portfolio Loans | Commercial real estate - owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	1,147,263	1,078,732
Portfolio Loans | Commercial real estate - owner occupied | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	496	0
Portfolio Loans | Commercial real estate - owner occupied | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	835	0
Portfolio Loans | Commercial real estate - owner occupied | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans	2,228,137	1,844,588
Nonaccrual	3,253	3,418
Portfolio Loans | Commercial real estate - non-owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	2,224,884	1,840,485
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	685
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Commercial real estate - non-owner occupied | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	0
Portfolio Loans | Residential real estate
Financing Receivable, Past Due [Line Items]
Loans	1,811,941	1,714,748
Nonaccrual	9,041	6,829
Portfolio Loans | Residential real estate | Current
Financing Receivable, Past Due [Line Items]
Loans	1,789,154	1,701,862
Portfolio Loans | Residential real estate | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	11,571	4,373
Portfolio Loans | Residential real estate | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,175	1,515
Portfolio Loans | Residential real estate | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	0	169
Portfolio Loans | Commercial and financial
Financing Receivable, Past Due [Line Items]
Loans	1,332,939	1,237,090
Nonaccrual	12,176	13,582
Portfolio Loans | Commercial and financial | Current
Financing Receivable, Past Due [Line Items]
Loans	1,317,596	1,221,941
Portfolio Loans | Commercial and financial | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,844	1,372
Portfolio Loans | Commercial and financial | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	175	145
Portfolio Loans | Commercial and financial | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans	148	50
Portfolio Loans | Consumer
Financing Receivable, Past Due [Line Items]
Loans	158,902	175,969
Nonaccrual	508	118
Portfolio Loans | Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	157,309	174,798
Portfolio Loans | Consumer | Accruing 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	615	763
Portfolio Loans | Consumer | Accruing 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	470	290
Portfolio Loans | Consumer | Accruing Greater Than 90 Days
Financing Receivable, Past Due [Line Items]
Loans		$ 0