CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income:
Loans, including fees	$ 93,217,947	$ 74,404,204
Securities:
Taxable	6,433,088	4,466,834
Tax-exempt	1,677,581	1,493,757
Federal funds sold and other	814,317	609,587
Total interest income	102,142,933	80,974,382
Interest expense:
Deposits	8,118,914	4,915,563
Securities sold under agreements to repurchase	49,766	48,050
Federal Home Loan Bank advances and other borrowings	5,207,380	2,108,092
Total interest expense	13,376,060	7,071,705
Net interest income	88,766,873	73,902,677
Provision for loan losses	3,651,022	3,893,570
Net interest income after provision for loan losses	85,115,851	70,009,107
Noninterest income:
Service charges on deposit accounts	3,855,483	3,442,684
Investment services	2,821,834	2,345,600
Insurance sales commissions	1,858,890	1,705,859
Gain on mortgage loans sold, net	4,154,952	3,567,551
Investment gains on sales, net	0	0
Trust fees	1,705,279	1,580,612
Income from equity method investment	7,822,737	5,147,524
Other noninterest income	8,162,419	8,065,880
Total noninterest income	30,381,594	25,855,710
Noninterest expense:
Salaries and employee benefits	38,352,184	32,516,856
Equipment and occupancy	9,674,658	8,130,464
Other real estate expense (benefit), net	251,973	112,272
Marketing and other business development	1,879,206	1,263,361
Postage and supplies	1,196,445	957,087
Amortization of intangibles	1,196,129	873,215
Merger related expense	672,016	1,829,472
Other noninterest expense	8,830,765	8,380,969
Total noninterest expense	62,053,376	54,063,696
Income before income taxes	53,444,069	41,801,121
Income tax expense	13,791,022	13,835,857
Net income	$ 39,653,047	$ 27,965,264
Per share information:
Basic net income per common share (in dollars per share)	$ 0.83	$ 0.70
Diluted net income per common share (in dollars per share)	$ 0.82	$ 0.68
Weighted average shares outstanding:
Basic (in shares)	48,022,342	40,082,805
Diluted (in shares)	48,517,920	40,847,027