CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest Income
Interest and fees on loans	$ 315,314	$ 321,883	$ 628,495	$ 654,951
Interest and dividends on investment securities:
Taxable	12,716	19,447	25,882	41,380
Tax-exempt	3,216	3,692	6,572	7,618
Dividends	2,167	3,092	4,038	6,493
Interest on federal funds sold and other short-term investments	235	411	459	1,876
Total interest income	333,648	348,525	665,446	712,318
Interest on deposits:
Savings, NOW and money market	11,166	16,627	22,291	51,140
Time	6,279	29,857	17,372	72,671
Interest on short-term borrowings	1,168	1,980	2,926	6,687
Interest on long-term borrowings and junior subordinated debentures	14,128	17,502	29,283	33,922
Total interest expense	32,741	65,966	71,872	164,420
Net Interest Income	300,907	282,559	593,574	547,898
(Credit) provision for credit losses for held to maturity securities	(30)	41	(388)	800
Provision for credit losses for loans	8,777	41,115	17,791	75,039
Net Interest Income After Provision for Credit Losses	292,160	241,403	576,171	472,059
Non-Interest Income
Insurance commissions	2,637	1,659	4,195	3,610
Gains (losses) on securities transactions, net	375	(41)	476	(81)
Fees from loan servicing	3,187	2,227	6,086	4,975
Gains on sales of loans, net	10,061	8,337	13,574	12,887
Gains (losses) on sales of assets, net	232	(299)	36	(178)
Bank owned life insurance	2,475	5,823	4,806	8,965
Other	15,544	20,741	28,139	40,573
Total non-interest income	43,126	44,830	74,359	86,227
Non-Interest Expense
Salary and employee benefits expense	91,095	78,532	179,198	164,260
Net occupancy and equipment expense	32,451	33,217	64,710	65,658
FDIC insurance assessment	3,374	6,135	6,650	10,011
Amortization of other intangible assets	5,449	6,681	11,455	12,151
Professional and legal fees	7,486	7,797	13,758	13,884
Loss on extinguishment of debt	8,406	0	8,406	0
Amortization of tax credit investments	2,972	3,416	5,716	6,644
Telecommunication expense	2,732	2,866	5,892	5,153
Other	17,928	18,522	36,321	35,061
Total non-interest expense	171,893	157,166	332,106	312,822
Income Before Income Taxes	163,393	129,067	318,424	245,464
Income tax expense	42,881	33,466	82,202	62,595
Net Income	120,512	95,601	236,222	182,869
Dividends on preferred stock	3,172	3,172	6,344	6,344
Net Income Available to Common Shareholders	$ 117,340	$ 92,429	$ 229,878	$ 176,525
Earnings Per Common Share:
Basic (usd per share)	$ 0.29	$ 0.23	$ 0.57	$ 0.44
Diluted (usd per share)	0.29	0.23	0.56	0.44
Cash Dividends Declared per Common Share (usd per share)	$ 0.11	$ 0.11	$ 0.22	$ 0.22
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	405,963,209	403,790,242	405,560,146	403,654,665
Diluted (in shares)	408,660,778	404,631,845	408,152,458	405,043,183
Trust and investment services
Non-Interest Income
Revenue from contracts with customer	$ 3,532	$ 2,826	$ 6,861	$ 6,239
Service charges on deposit accounts
Non-Interest Income
Revenue from contracts with customer	$ 5,083	$ 3,557	$ 10,186	$ 9,237