Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Income
Interest and fees on loans	$ 418,668	$ 278,027	$ 219,013
Interest on investment securities:
Taxable interest income	52,276	53,536	32,076
Tax-exempt interest income	4,485	4,387	2,402
Other, principally overnight investments	13,330	5,007	2,427
Total interest income	488,759	340,957	255,918
Interest Expense
Interest on deposits	114,866	11,349	7,881
Interest on borrowings	27,235	4,754	1,642
Total interest expense	142,101	16,103	9,523
Net interest income	346,658	324,854	246,395
Provision for loan losses	19,750	12,600	9,611
(Reversal of) provision for unfunded commitments	(1,937)	(200)	5,420
Total provision for credit losses	17,813	12,400	15,031
Net interest income after provision for credit losses	328,845	312,454	231,364
Noninterest Income
Service charges on deposit accounts	16,800	15,523	12,317
Other service charges, commissions and fees	22,270	26,294	25,516
Presold mortgage loan gains	1,613	2,102	10,975
Commissions from sales of insurance and financial products	5,503	5,195	6,947
SBA consulting fees	1,803	2,608	7,231
SBA loan sale gains	2,489	5,076	7,329
Bank-owned life insurance income	4,350	3,847	2,885
Securities losses, net	0	0	(1,237)
Other gains, net	2,662	7,340	1,648
Total noninterest income	57,490	67,985	73,611
Noninterest Expense
Salaries	114,377	96,321	86,815
Employee benefits	25,474	21,397	16,434
Total personnel expense	139,851	117,718	103,249
Occupancy expense	14,963	12,796	11,528
Equipment related expenses	6,027	5,808	4,492
Merger and acquisition expenses	13,695	5,072	16,845
Intangibles amortization	8,003	3,684	3,531
Other operating expenses	71,840	50,142	45,011
Total noninterest expense	254,379	195,220	184,656
Income before income taxes	131,956	185,219	120,319
Income tax expense	27,825	38,283	24,675
Net income	$ 104,131	$ 146,936	$ 95,644
Earnings per common share: Basic (in usd per shares)	$ 2.54	$ 4.12	$ 3.19
Earnings per common share: Diluted (in usd per share)	2.53	4.12	3.19
Dividends declared per common share (in usd per shares)	$ 0.88	$ 0.88	$ 0.80
Weighted average common shares outstanding:
Basic (in shares)	40,746,772	35,485,620	29,876,151
Diluted (in shares)	41,164,834	35,674,730	30,027,785