CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest Income:
Interest and fees on loans	$ 79,167	$ 76,786	$ 239,028	$ 215,050
Interest on loans held for sale	572	336	1,145	983
Interest on deposits with banks	783	211	1,405	1,082
Interest and dividends on investment securities:
Taxable	5,221	5,112	16,302	15,297
Exempt from federal income taxes	1,337	1,921	4,591	6,035
Interest on federal funds sold	2	8	8	28
Total interest income	87,082	84,374	262,479	238,475
Interest Expense:
Interest on deposits	16,332	10,773	46,958	26,583
Interest on retail repurchase agreements and federal funds purchased	257	383	945	599
Interest on advances from FHLB	3,222	5,141	13,389	15,557
Interest on subordinated debt	481	486	1,462	1,436
Total interest expense	20,292	16,783	62,754	44,175
Net interest income	66,790	67,591	199,725	194,300
Provision (credit) for loan losses	1,524	1,890	3,029	5,620
Net interest income after provision for loan losses	65,266	65,701	196,696	188,680
Investment securities gains	15	82	20	145
Insurance agency commissions	2,116	2,016	5,281	5,020
Income from bank owned life insurance	662	663	2,505	3,664
Other income	1,901	1,504	6,037	5,391
Total non-interest income	18,573	15,033	52,098	47,019
Non-interest Expenses:
Salaries and employee benefits	26,234	24,488	77,699	73,064
Occupancy expense of premises	4,816	4,355	14,807	13,939
Equipment expenses	2,641	2,441	7,929	6,909
Marketing	1,541	770	3,371	2,863
Outside data services	1,973	1,736	5,713	4,840
FDIC insurance	(83)	1,257	2,137	3,840
Amortization of intangible assets	491	540	1,465	1,622
Merger expenses	364	580	364	11,766
Professional fees and services	1,546	1,351	4,425	4,090
Other Expense	5,402	4,875	15,094	14,183
Total non-interest expenses	44,925	42,393	133,004	137,116
Income before income taxes	38,914	38,341	115,790	98,583
Income tax expense	9,531	9,107	27,814	23,285
Net income	$ 29,383	$ 29,234	$ 87,976	$ 75,298
Per share information:
Basic net income per share	$ 0.82	$ 0.82	$ 2.46	$ 2.11
Diluted net income per share	0.82	0.82	2.45	2.11
Dividends declared per common share	$ 0.30	$ 0.28	$ 0.88	$ 0.82
Service charges on deposit accounts [Member]
Fees, comminssions and banking services	$ 2,516	$ 2,316	$ 7,265	$ 6,865
Mortgage banking activities [Member]
Fees, comminssions and banking services	4,408	1,672	10,541	5,943
Wealth managment [Member]
Fees, comminssions and banking services	5,493	5,344	16,268	15,792
Bank card fees [member]
Fees, comminssions and banking services	$ 1,462	$ 1,436	$ 4,181	$ 4,199