CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and noninterest-bearing due from banks	$ 91,575,519	$ 79,785,004
Interest-bearing due from banks	114,865,408	124,509,486
Federal funds sold and other	4,667,086	4,644,247
Cash and cash equivalents	211,108,013	208,938,737
Securities available-for-sale, at fair value	743,528,294	693,456,314
Securities held-to-maturity (fair value of $38,290,464 and $38,817,467 at June 30, 2014 and December 31, 2013, respectively)	38,537,545	39,795,649
Mortgage loans held-for-sale	24,591,553	12,850,339
Loans	4,315,561,552	4,144,493,486
Less allowance for loan losses	(66,888,250)	(67,969,693)
Loans, net	4,248,673,302	4,076,523,793
Premises and equipment, net	72,534,086	72,649,574
Other investments	33,496,695	33,226,195
Accrued interest receivable	15,921,099	15,406,389
Goodwill	243,550,227	243,651,006
Core deposits and other intangible assets	3,365,399	3,840,750
Other real estate owned	12,946,465	15,226,136
Other assets	140,538,915	148,210,975
Total assets	5,788,791,593	5,563,775,857
Deposits:
Noninterest-bearing	1,324,358,420	1,167,414,487
Interest-bearing	900,576,170	884,294,802
Savings and money market accounts	1,950,235,361	1,962,714,398
Time	476,343,393	519,049,037
Total deposits	4,651,513,344	4,533,472,724
Securities sold under agreements to repurchase	62,272,670	70,465,326
Federal Home Loan Bank advances	170,556,327	90,637,328
Subordinated debt and other borrowings	97,408,292	98,658,292
Accrued interest payable	661,273	792,703
Other liabilities	41,997,702	46,041,823
Total liabilities	5,024,409,608	4,840,068,196
Stockholders' equity:
Preferred stock, no par value, 10,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, par value $1.00; 90,000,000 shares authorized; 35,601,495 and 35,221,941 shares issued and outstanding at June 30, 2014 and December 31, 2013, respectively	35,601,495	35,221,941
Additional paid-in capital	555,428,349	550,212,135
Retained earnings	170,155,642	142,298,199
Accumulated other comprehensive income, net of taxes	3,196,499	(4,024,614)
Total stockholders' equity	764,381,985	723,707,661
Total liabilities and stockholders' equity	$ 5,788,791,593	$ 5,563,775,857