CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loans receivable:
Taxable	$ 210,302	$ 180,805	$ 172,039
Tax-exempt	6,525	3,459	327
Investment securities:
Taxable	16,415	17,885	19,882
Tax-exempt	18,622	16,922	14,383
Deposits with financial institutions	350	160	124
Federal Reserve and Federal Home Loan Bank stock	1,098	1,967	2,124
Total Interest Income	253,312	221,198	208,879
INTEREST EXPENSE
Deposits	15,914	14,855	11,678
Federal funds purchased	102	74	177
Securities sold under repurchase agreements	374	368	529
Federal Home Loan Bank advances	3,264	2,836	2,842
Subordinated debentures, revolving credit lines and term loans	7,185	6,661	6,616
Total Interest Expense	26,839	24,794	21,842
NET INTEREST INCOME	226,473	196,404	187,037
Provision for loan losses	5,657	417	2,560
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	220,816	195,987	184,477
OTHER INCOME
Service charges on deposit accounts	17,762	16,201	15,747
Fiduciary activities	9,818	9,196	8,966
Other customer fees	19,315	16,959	15,699
Commission income		4,147	7,411
Earnings on cash surrender value of life insurance	4,273	2,919	3,659
Net gains and fees on sales of loans	7,052	6,483	4,899
Net realized gains on sales of available for sale securities	3,389	2,670	3,581
Gain on sale of insurance subsidiary		8,265
Gain on cancellation of subordinated debentures		1,250
Other income	3,594	1,778	1,854
Total Other Income	65,203	69,868	61,816
OTHER EXPENSES
Salaries and employee benefits	102,552	101,908	96,499
Net occupancy	16,997	14,668	13,831
Equipment	12,497	10,787	9,337
Marketing	3,008	3,493	3,464
Outside data processing fees	9,148	7,109	7,315
Printing and office supplies	1,348	1,353	1,565
Core deposit amortization	3,910	2,835	2,445
FDIC assessments	3,036	3,655	3,738
Other real estate owned and foreclosure expenses	2,877	3,956	3,462
Professional and other outside services	6,516	9,855	8,116
Other expenses	15,470	15,187	14,236
Total Other Expenses	177,359	174,806	164,008
INCOME BEFORE INCOME TAX	108,660	91,049	82,285
Income tax expense	27,609	25,665	22,123
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 81,051	$ 65,384	$ 60,162
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS PER SHARE:
Basic (in dollars per share)	$ 1.99	$ 1.73	$ 1.66
Diluted (in dollars per share)	$ 1.98	$ 1.72	$ 1.65