Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
INTEREST INCOME
Interest and Fees on Loans	$ 86,202	$ 66,740	$ 65,597
Interest on Federal Funds Sold and Other Short-term Investments	74	13	12
Interest and Dividends on Securities:
Taxable	9,638	9,017	10,409
Non-taxable	7,451	5,850	4,368
TOTAL INTEREST INCOME	103,365	81,620	80,386
INTEREST EXPENSE
Interest on Deposits	5,187	3,976	4,128
Interest on FHLB Advances and Other Borrowings	3,274	2,092	1,919
TOTAL INTEREST EXPENSE	8,461	6,068	6,047
NET INTEREST INCOME	94,904	75,552	74,339
Provision for Loan Losses	1,200	0	150
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	93,704	75,552	74,189
NON-INTEREST INCOME
Trust and Investment Product Fees	4,644	3,957	3,675
Service Charges on Deposit Accounts	5,973	4,826	4,829
Insurance Revenues	7,741	7,489	7,255
Company Owned Life Insurance	987	846	826
Debit Interchange Fee Income	2,532	2,127	1,961
Other Operating Income	4,798	4,515	2,018
Net Gains on Sales of Loans	3,359	2,959	1,892
Net Gains on Securities	1,979	725	1,481
TOTAL NON-INTEREST INCOME	32,013	27,444	23,937
NON-INTEREST EXPENSE
Salaries and Employee Benefits	43,961	35,042	32,710
Occupancy Expense	6,297	4,939	5,094
Furniture and Equipment Expense	2,261	1,873	1,953
FDIC Premiums	1,151	1,144	1,113
Data Processing Fees	5,686	3,541	3,675
Professional Fees	3,672	2,661	2,294
Advertising and Promotion	2,657	3,669	1,977
Intangible Amortization	1,062	790	1,254
Other Operating Expenses	9,840	7,667	7,643
TOTAL NON-INTEREST EXPENSE	76,587	61,326	57,713
Income before Income Taxes	49,130	41,670	40,413
Income Tax Expense	13,946	11,606	12,069
NET INCOME	$ 35,184	$ 30,064	$ 28,344
Basic Earnings per Share (in usd per share)	$ 2.36	$ 2.27	$ 2.15
Diluted Earnings per Share (in usd per share)	$ 2.36	$ 2.27	$ 2.14