Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Interest Income:
Interest and fees on loans and leases	$ 525,960	$ 196,273	$ 1,303,774	$ 572,728
Taxable interest and dividends on investments	77,570	38,208	200,832	118,125
Non-taxable interest on investment securities	13,999	5,154	36,465	15,770
Loans held for sale	40	57	73	201
Total interest income	617,569	239,692	1,541,144	706,824
Interest Expense:
Deposits	37,492	4,571	57,350	16,104
Securities sold under agreements to repurchase and other borrowings	6,242	721	9,876	2,216
Federal Home Loan Bank advances	13,814	492	17,034	1,539
Long-term debt	9,018	4,217	24,973	12,658
Total interest expense	66,566	10,001	109,233	32,517
Net interest income	551,003	229,691	1,431,911	674,307
Provision (benefit) for credit losses	36,531	7,750	237,619	(39,500)
Net interest income after provision (benefit) for credit losses	514,472	221,941	1,194,292	713,807
Non-interest Income:
Deposit service fees	50,807	40,258	150,019	122,166
Loan and lease related fees	26,769	10,881	77,355	27,056
Wealth and investment services	11,419	9,985	33,260	29,475
Mortgage banking activities	86	1,525	616	5,486
Increase in cash surrender value of life insurance policies	7,718	3,666	22,694	10,802
(Loss) on sale of investment securities, net	(2,234)	0	(2,234)	0
Other income	19,071	17,460	56,894	38,249
Total non-interest income	113,636	83,775	338,604	233,234
Non-interest Expense:
Compensation and benefits	173,983	105,352	545,641	310,706
Occupancy	23,517	12,430	93,725	42,090
Technology and equipment	45,283	28,441	142,182	84,081
Intangible assets amortization	8,511	1,124	23,700	3,395
Marketing	3,918	3,721	10,868	9,452
Professional and outside services	21,618	7,074	91,041	37,875
Deposit insurance	8,026	3,855	19,996	11,560
Other expense	45,215	18,240	120,930	56,088
Total non-interest expense	330,071	180,237	1,048,083	555,247
Income before income taxes	298,037	125,479	484,813	391,794
Income tax expense	64,069	29,766	85,281	93,968
Net income	233,968	95,713	399,532	297,826
Less: Preferred stock dividends	4,162	1,968	11,756	5,906
Net income available to common shareholders	229,806	93,745	387,776	291,920
Earnings applicable to common shareholders	$ 229,806	$ 93,745	$ 387,776	$ 291,920
Earnings per common share:
Basic (in dollars per share)	$ 1.31	$ 1.03	$ 2.32	$ 3.23
Diluted (in dollars per share)	$ 1.31	$ 1.03	$ 2.32	$ 3.22