Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
INTEREST INCOME
Interest and fees on loans	$ 106,514	$ 72,239	$ 308,857	$ 201,518
Interest on investment securities:
Taxable interest income	12,936	13,450	39,415	40,045
Tax-exempt interest income	1,118	1,115	3,368	3,267
Other, principally overnight investments	3,283	1,486	10,546	3,016
Total interest income	123,851	88,290	362,186	247,846
INTEREST EXPENSE
Interest on deposits	32,641	1,848	78,887	5,204
Interest on borrowings	6,508	1,108	19,125	2,160
Total interest expense	39,149	2,956	98,012	7,364
Net interest income	84,702	85,334	264,174	240,482
Provision for loan losses	1,200	5,100	16,351	8,600
(Reversal of) provision for unfunded commitments	(1,200)	300	(1,487)	(1,200)
Total provision for credit losses	0	5,400	14,864	7,400
Net interest income after provision for credit losses	84,702	79,934	249,310	233,082
NONINTEREST INCOME
Service charges on deposit accounts	4,661	4,166	13,012	11,407
Other service charges and fees	5,450	6,312	16,677	21,200
Fees from presold mortgage loans	325	376	1,288	1,951
Commissions from sales of financial products	1,207	1,391	3,926	3,487
SBA consulting fees	478	479	1,408	1,963
SBA loan sale gains	1,101	479	2,052	4,581
Bank-owned life insurance income	1,104	962	3,216	2,880
Other gains, net	851	2,747	1,369	5,958
Total noninterest income	15,177	16,912	42,948	53,427
NONINTEREST EXPENSE
Salaries expense	29,394	24,416	87,391	71,669
Employee benefits expense	6,539	4,156	19,097	16,044
Total personnel expense	35,933	28,572	106,488	87,713
Occupancy expense	3,409	3,175	10,644	9,681
Equipment related expenses	1,594	1,672	4,398	4,490
Merger and acquisition expenses	0	548	13,506	4,769
Intangibles amortization expense	1,953	889	6,147	2,859
Other operating expenses	19,335	13,844	56,809	40,051
Total noninterest expenses	62,224	48,700	197,992	149,563
Income before income taxes	37,655	48,146	94,266	136,946
Income tax expense	7,762	10,197	19,809	28,443
Net income	$ 29,893	$ 37,949	$ 74,457	$ 108,503
Earnings per common share:
Basic (in dollars per share)	$ 0.73	$ 1.06	$ 1.82	$ 3.04
Diluted (in dollars per share)	0.73	1.06	1.81	3.04
Dividends declared per common share (in dollars per share)	$ 0.22	$ 0.22	$ 0.66	$ 0.66
Weighted average common shares outstanding:
Basic (in shares)	40,744,042	35,469,001	40,691,751	35,474,239
Diluted (in shares)	41,199,058	35,703,446	41,149,990	35,662,527