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
Document Period End Date			Jun. 30, 2020
Interest income
Loans, including fees	$ 105,900	$ 126,365	$ 221,675	$ 249,421
Investment securities
Taxable	18,476	23,616	37,481	47,851
Tax-exempt	4,937	4,336	9,519	8,594
Total interest on investment securities	23,413	27,952	47,000	56,445
Other earning assets	47	206	189	416
Total interest income	129,360	154,523	268,864	306,282
Interest expense
Deposits	11,751	20,612	28,116	39,855
Short-term borrowings	1,274	6,646	6,361	12,606
Long-term borrowings	4,759	4,963	8,529	10,004
Total interest expense	17,784	32,221	43,006	62,465
Net interest income	111,576	122,302	225,858	243,817
Provision for Credit Losses	17,859	6,658	41,739	20,741
Provision for credit losses	2,370	(132)	3,938	(126)
Net interest income after provision for loan and lease losses	91,347	115,776	180,181	223,202
Noninterest income
Service Charges on Deposit Accounts	6,001	9,819	14,436	18,722
Trust and wealth management fees	4,114	3,943	8,583	8,013
Bankcard income	2,844	6,497	5,542	12,083
Client derivative fees	2,984	4,905	6,089	6,609
Foreign exchange income	6,576	17	16,542	17
Net gain from sales of loans	16,662	3,432	19,493	5,322
Net gain (loss) on sales/transfers of investment securities	2	(37)	(57)	(215)
Other	3,542	6,062	7,481	10,914
Total noninterest income	42,725	34,638	78,109	61,465
Noninterest expenses
Salaries and employee benefits	55,925	53,985	110,747	101,897
Net occupancy	5,378	5,596	11,482	12,226
Furniture and equipment	3,681	4,222	7,734	7,638
Data processing	7,019	4,984	13,408	10,111
Marketing	1,339	1,976	2,559	3,582
Communication	907	747	1,797	1,475
Professional services	2,205	2,039	4,480	4,291
State intangible tax	1,514	1,307	3,030	2,617
FDIC assessments	1,290	1,065	2,695	2,015
Intangible assets amortization	2,791	2,044	5,583	4,089
Other	6,640	6,545	14,840	13,062
Total noninterest expenses	88,689	84,510	178,355	163,003
Income before income taxes	45,383	65,904	79,935	121,664
Income tax expense	7,990	13,201	13,914	23,122
Net income	$ 37,393	$ 52,703	$ 66,021	$ 98,542
Earnings per common share
Basic	$ 0.38	$ 0.54	$ 0.68	$ 1.01
Diluted	0.38	0.53	0.67	1.00
Cash dividends declared per share	$ 0.23	$ 0.22	$ 0.46	$ 0.44
Average common shares outstanding - basic	97,220,748	98,083,799	97,478,719	98,005,379
Average common shares outstanding - diluted	97,988,600	98,648,384	98,172,408	98,542,947