Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
INTEREST INCOME
Loans and fees	$ 56,801	$ 58,563	$ 170,483	$ 175,324
Federal funds sold and interest-bearing deposits with banks	92	695	287	1,297
Taxable investment securities and other	4,139	5,007	14,131	14,865
Tax-exempt investment securities	401	361	1,082	1,165
TOTAL INTEREST INCOME	61,433	64,626	185,983	192,651
INTEREST EXPENSE
Deposits	7,012	13,267	25,969	37,526
Federal funds purchased and securities sold under agreements to repurchase	27	231	531	1,333
Other borrowings	2,260	2,446	6,931	7,306
TOTAL INTEREST EXPENSE	9,299	15,944	33,431	46,165
NET INTEREST INCOME	52,134	48,682	152,552	146,486
Provision for loan losses	8,000	536	26,223	1,044
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	44,134	48,146	126,329	145,442
NONINTEREST INCOME
Service charges on deposit accounts	2,288	2,851	6,663	8,179
Commissions and fees	1,667	1,545	4,503	4,682
Income on bank owned life insurance	670	691	2,000	2,064
(Loss) gain on equity securities	(170)	72	(625)	525
Gains on sales of loans	1,437	486	2,562	1,285
Gains on sales of investment securities, net	0	0	342	0
Swap income	624	730	4,234	1,585
Other income	257	325	586	492
Total Noninterest Income	6,773	6,700	20,265	18,812
NONINTEREST EXPENSE
Salaries and employee benefits	19,694	19,062	60,198	57,672
Net occupancy expense	2,692	2,767	8,016	8,350
Furniture and equipment	2,890	2,084	8,233	6,365
FDIC insurance expense	625	(420)	1,373	431
Stationery, supplies and postage	488	366	1,268	1,214
Marketing expense	381	423	840	1,430
Data processing expense	1,211	1,248	3,900	3,800
Telecommunications expense	501	480	1,399	1,451
ATM and debit card expense	615	588	1,738	1,773
Core deposit intangible amortization	250	288	776	893
Other real estate and repossessed asset expense (income)	(2)	29	53	223
Long-term debt prepayment fee	0	0	356	0
Merger related expenses	0	0	0	3,178
Other expenses	2,752	2,648	7,913	8,453
TOTAL NONINTEREST EXPENSE	32,097	29,563	96,063	95,233
Income before provision for income taxes	18,810	25,283	50,531	69,021
Provision for income taxes	4,383	6,409	11,861	17,064
NET INCOME	$ 14,427	$ 18,874	$ 38,670	$ 51,957
Earnings Per Share [Abstract]
Basic earnings (in usd per share)	$ 0.28	$ 0.37	$ 0.76	$ 1.02
Diluted earnings (in usd per share)	0.28	0.37	0.76	1.02
Common stock, dividends price per share (in usd per share)	$ 0.125	$ 0.125	$ 0.375	$ 0.365