CONDENSED CONSOLIDATED STATEMENTS OF INCOME - UNAUDITED - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest Income:
Interest and fees on loans	$ 79,464	$ 70,672	$ 159,861	$ 138,264
Interest on loans held for sale	381	279	573	647
Interest on deposits with banks	428	514	622	871
Interest and dividends on investment securities:
Taxable	5,396	5,083	11,081	10,185
Exempt from federal income taxes	1,544	2,042	3,254	4,114
Interest on federal funds sold	1	7	6	20
Total interest income	87,214	78,597	175,397	154,101
Interest Expense:
Interest on deposits	16,146	8,851	30,626	15,810
Interest on retail repurchase agreements and federal funds purchased	290	108	688	216
Interest on advances from FHLB	4,103	5,338	10,167	10,416
Interest on subordinated debt	490	482	981	950
Total interest expense	21,029	14,779	42,462	27,392
Net interest income	66,185	63,818	132,935	126,709
Provision (credit) for loan losses	1,633	1,733	1,505	3,730
Net interest income after provision for loan losses	64,552	62,085	131,430	122,979
Investment securities gains	5	0	5	63
Insurance agency commissions	1,265	1,180	3,165	3,004
Income from bank owned life insurance	654	670	1,843	3,001
Other income	1,914	1,884	4,136	3,887
Total non-interest income	16,556	14,868	33,525	31,986
Non-interest Expenses:
Salaries and employee benefits	25,489	24,664	51,465	48,576
Occupancy expense of premises	4,760	4,642	9,991	9,584
Equipment expenses	2,712	2,243	5,288	4,468
Marketing	887	945	1,830	2,093
Outside data services	1,962	1,707	3,740	3,104
FDIC insurance	1,084	1,390	2,220	2,583
Amortization of intangible assets	483	541	974	1,082
Merger expenses	0	2,228	0	11,186
Professional fees and services	1,634	1,699	2,879	2,739
Other Expense	4,876	5,023	9,692	9,308
Total non-interest expenses	43,887	45,082	88,079	94,723
Income before income taxes	37,221	31,871	76,876	60,242
Income tax expense	8,945	7,472	18,283	14,178
Net income	$ 28,276	$ 24,399	$ 58,593	$ 46,064
Per share information:
Basic net income per share	$ 0.79	$ 0.68	$ 1.64	$ 1.29
Diluted net income per share	0.79	0.68	1.63	1.29
Dividends declared per common share	$ 0.30	$ 0.28	$ 0.58	$ 0.54
Service charges on deposit accounts [Member]
Fees, comminssions and banking services	$ 2,442	$ 2,290	$ 4,749	$ 4,549
Mortgage banking activities [Member]
Fees, comminssions and banking services	3,270	2,064	6,133	4,271
Wealth managment [Member]
Fees, comminssions and banking services	5,539	5,387	10,775	10,448
Bank card fees [member]
Fees, comminssions and banking services	$ 1,467	$ 1,393	$ 2,719	$ 2,763