Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
INTEREST INCOME
Loans, including fees	$ 134,079	$ 129,777
Investment securities:
Taxable	12,003	11,282
Tax-exempt	2,040	2,087
Dividends	160	348
Loans held for sale	131	173
Other interest income	898	2,105
Total Interest Income	149,311	145,772
INTEREST EXPENSE
Deposits	10,727	9,823
Short-term borrowings	268	77
Long-term debt	9,262	12,291
Total Interest Expense	20,257	22,191
Net Interest Income	129,054	123,581
Provision for credit losses	1,530	(3,700)
Net Interest Income After Provision for Credit Losses	127,524	127,281
NON-INTEREST INCOME
Service charges on deposit accounts	12,558	11,569
Investment management and trust services	10,988	10,889
Other service charges and fees	10,750	9,363
Mortgage banking income	4,030	4,688
Net gains on sales of investment securities	947	4,145
Other	3,864	4,083
Total Non-Interest Income	43,137	44,737
NON-INTEREST EXPENSE
Salaries and employee benefits	69,372	64,990
Net occupancy expense	12,220	13,692
Other outside services	6,056	5,750
Data processing	5,400	4,768
Software	3,921	3,318
Equipment expense	3,371	3,958
FDIC insurance expense	2,949	2,822
Supplies and postage	2,579	2,369
Professional fees	2,333	2,871
Marketing	1,624	1,233
Telecommunications	1,488	1,716
Other real estate owned and repossession expense	638	1,362
Operating risk loss	540	827
Intangible amortization	0	130
Other	7,922	8,672
Total Non-Interest Expense	120,413	118,478
Income Before Income Taxes	50,248	53,540
Income taxes	11,991	13,504
Net Income	$ 38,257	$ 40,036
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.22	$ 0.22
Net Income (Diluted) (in dollars per share)	0.22	0.22
Cash Dividends (in dollars per share)	$ 0.09	$ 0.09