CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest Income
Interest and fees on loans	$ 313,181	$ 333,068
Interest and dividends on investment securities:
Taxable	13,166	21,933
Tax-exempt	3,356	3,926
Dividends	1,871	3,401
Interest on federal funds sold and other short-term investments	224	1,465
Total interest income	331,798	363,793
Interest on deposits:
Savings, NOW and money market	11,125	34,513
Time	11,093	42,814
Interest on short-term borrowings	1,758	4,707
Interest on long-term borrowings and junior subordinated debentures	15,155	16,420
Total interest expense	39,131	98,454
Net Interest Income	292,667	265,339
(Credit) provision for credit losses for held to maturity securities	(358)	759
Provision for credit losses for loans	9,014	33,924
Net Interest Income After Provision for Credit Losses	284,011	230,656
Non-Interest Income
Insurance commissions	1,558	1,951
Losses on securities transactions, net	(118)	(40)
Fees from loan servicing	2,899	2,748
Gains on sales of loans, net	3,513	4,550
(Losses) gains on sales of assets, net	(196)	121
Bank owned life insurance	2,331	3,142
Other	12,814	19,832
Total non-interest income	31,233	41,397
Non-Interest Expense
Salary and employee benefits expense	88,103	85,728
Net occupancy and equipment expense	32,259	32,441
FDIC insurance assessment	3,276	3,876
Amortization of other intangible assets	6,006	5,470
Professional and legal fees	6,272	6,087
Amortization of tax credit investments	2,744	3,228
Telecommunication expense	3,160	2,287
Other	18,393	16,539
Total non-interest expense	160,213	155,656
Income Before Income Taxes	155,031	116,397
Income tax expense	39,321	29,129
Net Income	115,710	87,268
Dividends on preferred stock	3,172	3,172
Net Income Available to Common Shareholders	$ 112,538	$ 84,096
Earnings Per Common Share:
Basic (usd per share)	$ 0.28	$ 0.21
Diluted (usd per share)	0.28	0.21
Cash Dividends Declared per Common Share (usd per share)	$ 0.11	$ 0.11
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	405,152,605	403,519,088
Diluted (in shares)	407,636,765	405,424,123
Trust and investment services
Non-Interest Income
Revenue from contracts with customer	$ 3,329	$ 3,413
Service charges on deposit accounts
Non-Interest Income
Revenue from contracts with customer	$ 5,103	$ 5,680