Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest Income:
Interest and fees on loans and leases	$ 431,538	$ 185,919	$ 777,814	$ 376,455
Taxable interest and dividends on investments	69,538	40,303	123,262	79,917
Non-taxable interest on investment securities	12,664	5,283	22,466	10,616
Loans held for sale	7	53	33	144
Total interest income	513,747	231,558	923,575	467,132
Interest Expense:
Deposits	12,459	5,094	19,858	11,533
Securities sold under agreements to repurchase and other borrowings	2,677	860	3,634	1,495
Federal Home Loan Bank advances	3,164	534	3,220	1,047
Long-term debt	8,787	4,218	15,955	8,441
Total interest expense	27,087	10,706	42,667	22,516
Net interest income	486,660	220,852	880,908	444,616
Provision (benefit) for credit losses	12,243	(21,500)	201,088	(47,250)
Net interest income after provision (benefit) for credit losses	474,417	242,352	679,820	491,866
Non-interest Income:
Deposit service fees	51,385	41,439	99,212	81,908
Loan and lease related fees	27,907	7,862	50,586	16,175
Wealth and investment services	11,244	10,087	21,841	19,490
Mortgage banking activities	102	1,319	530	3,961
Increase in cash surrender value of life insurance policies	8,244	3,603	14,976	7,136
Other income	22,051	8,392	37,823	20,789
Total non-interest income	120,933	72,702	224,968	149,459
Non-interest Expense:
Compensation and benefits	187,656	97,754	371,658	205,354
Occupancy	51,593	14,010	70,208	29,660
Technology and equipment	41,498	27,124	96,899	55,640
Intangible assets amortization	8,802	1,132	15,189	2,271
Marketing	3,441	3,227	6,950	5,731
Professional and outside services	15,332	21,025	69,423	30,801
Deposit insurance	6,748	3,749	11,970	7,705
Other expense	43,157	19,007	75,715	37,848
Total non-interest expense	358,227	187,028	718,012	375,010
Income before income taxes	237,123	128,026	186,776	266,315
Income tax expense	54,812	33,991	21,212	64,202
Net income	182,311	94,035	165,564	202,113
Less: Preferred stock dividends	4,163	1,969	7,594	3,938
Net income available to common shareholders	178,148	92,066	157,970	198,175
Earnings applicable to common shareholders	$ 178,148	$ 92,066	$ 157,970	$ 198,175
Earnings per common share:
Basic (in dollars per share)	$ 1.00	$ 1.02	$ 0.97	$ 2.19
Diluted (in dollars per share)	$ 1.00	$ 1.01	$ 0.97	$ 2.19