Consolidated Statements of Income (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Interest income:
Loans, including fees	$ 724,640	$ 463,688
Investment securities:
Taxable	53,870	39,745
Tax-exempt	7,516	5,568
Federal funds sold, securities purchased under agreements to resell and interest-bearing deposits with banks	22,540	8,254
Total interest income	808,566	517,255
Interest expense:
Deposits	245,957	160,162
Federal funds purchased and securities sold under agreements to repurchase	4,909	4,727
Corporate and subordinated debentures	12,505	6,009
Other borrowings	648	2,421
Total interest expense	264,019	173,319
Net interest income	544,547	343,936
Provision for credit losses	100,562	12,686
Net interest income after provision for credit losses	443,985	331,250
Noninterest income:
Securities losses, net	(228,811)
Gain on sale-leaseback, net of transaction costs	229,279
Other income	14,241	13,179
Total noninterest income	86,088	71,558
Noninterest expense:
Salaries and employee benefits	195,811	150,453
Occupancy expense	35,493	22,577
Information services expense	31,362	22,353
OREO and loan related expense	1,784	606
Amortization of intangibles	23,831	5,998
Supplies, printing and postage expense	3,128	2,540
Professional fees	4,709	3,115
FDIC assessment and other regulatory charges	11,258	8,534
FDIC special assessment		3,854
Advertising and marketing	2,290	1,984
Merger, branch consolidation, severance related and other expense	68,006	4,513
Other expense	31,154	22,763
Total noninterest expense	408,826	249,290
Earnings:
Income before provision for income taxes	121,247	153,518
Provision for income taxes	32,167	38,462
Net income	$ 89,080	$ 115,056
Earnings per common share:
Basic (in dollars per share)	$ 0.88	$ 1.51
Diluted (in dollars per share)	$ 0.87	$ 1.5
Weighted average common shares outstanding:
Basic (in shares)	101,410	76,301
Diluted (in shares)	101,829	76,660
Fees on deposit accounts
Noninterest income:
Noninterest income	$ 35,933	$ 33,145
Mortgage banking income
Noninterest income:
Noninterest income	7,737	6,169
Trust and investment services income
Noninterest income:
Noninterest income	14,932	10,391
Correspondent banking and capital markets income
Noninterest income:
Noninterest income	9,545	4,311
SBA income
Noninterest income:
Noninterest income	$ 3,232	$ 4,363