Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
INTEREST INCOME
Loans	$ 176,910	$ 178,122	$ 364,476	$ 337,562
Interest bearing balances due from banks and federal funds sold	603	1,121	3,044	3,275
Investment securities	13,473	15,666	32,416	31,947
Mortgage loans held for sale	668	332	949	542
TOTAL INTEREST INCOME	191,654	195,241	400,885	373,326
INTEREST EXPENSE
Deposits	18,006	34,796	49,283	65,546
Federal funds purchased and securities sold under agreements to repurchase	337	257	1,096	393
Other borrowings	4,963	6,219	9,840	13,012
Subordinated notes and debentures	4,667	4,541	9,502	8,952
TOTAL INTEREST EXPENSE	27,973	45,813	69,721	87,903
NET INTEREST INCOME	163,681	149,428	331,164	285,423
Provision for credit loss expense	26,915	7,079	53,049	16,364
NET INTEREST INCOME AFTER PROVISION FOR CREDIT LOSSES	136,766	142,349	278,115	269,059
NON-INTEREST INCOME
Investment banking income	571	360	1,448	978
Bank owned life insurance income	1,445	1,260	2,743	2,055
Gain on sale of securities, net	390	2,823	32,485	5,563
Other income	9,809	6,065	22,610	10,221
TOTAL NON-INTEREST INCOME	50,227	39,934	132,621	74,726
NON-INTEREST EXPENSE
Salaries and employee benefits	57,644	56,128	125,568	112,495
Occupancy expense, net	9,217	6,919	18,727	14,394
Furniture and equipment expense	6,144	4,206	11,867	7,564
Other real estate and foreclosure expense	274	591	599	1,228
Deposit insurance	2,838	2,510	5,313	4,550
Merger related costs	1,830	7,522	2,898	8,992
Other operating expenses	34,651	32,867	73,439	62,929
TOTAL NON-INTEREST EXPENSE	112,598	110,743	238,411	212,152
INCOME BEFORE INCOME TAXES	74,395	71,540	172,325	131,633
Provision for income taxes	15,593	15,616	36,287	28,014
NET INCOME	58,802	55,924	136,038	103,619
Preferred stock dividends	13	326	26	326
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 58,789	$ 55,598	$ 136,012	$ 103,293
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.54	$ 0.58	$ 1.23	$ 1.10
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.54	$ 0.58	$ 1.22	$ 1.09
Trust income
NON-INTEREST INCOME
Non-interest income	$ 7,253	$ 5,794	$ 14,404	$ 11,502
Service charges on deposit accounts
NON-INTEREST INCOME
Non-interest income	8,570	10,557	21,898	20,625
Other service charges and fees
NON-INTEREST INCOME
Non-interest income	1,489	1,312	3,077	2,601
Mortgage lending income
NON-INTEREST INCOME
Non-interest income	12,459	3,656	17,505	6,479
SBA lending income
NON-INTEREST INCOME
Non-interest income	245	895	541	1,392
Debit and credit card fees
NON-INTEREST INCOME
Non-interest income	$ 7,996	$ 7,212	$ 15,910	$ 13,310