Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
INTEREST INCOME
Loans, including fees	$ 129,910	$ 131,440	$ 259,687	$ 263,270
Investment securities:
Taxable	10,944	12,418	22,226	25,684
Tax-exempt	1,881	2,298	3,968	4,646
Dividends	296	325	644	657
Loans held for sale	265	214	438	348
Other interest income	933	1,207	3,038	2,089
Total Interest Income	144,229	147,902	290,001	296,694
INTEREST EXPENSE
Deposits	10,053	8,685	19,876	16,581
Short-term borrowings	103	540	180	1,173
Long-term debt	11,153	10,779	23,444	21,477
Total Interest Expense	21,309	20,004	43,500	39,231
Net Interest Income	122,920	127,898	246,501	257,463
Provision for credit losses	2,200	3,500	(1,500)	6,000
Net Interest Income After Provision for Credit Losses	120,720	124,398	248,001	251,463
NON-INTEREST INCOME
Service charges on deposit accounts	12,637	12,552	24,206	24,263
Investment management and trust services	11,011	11,339	21,900	22,297
Other service charges and fees	10,988	10,526	20,351	19,453
Mortgage banking income	5,339	5,741	10,027	9,346
Investment securities gains, net:
Net gains on sales of investment securities	2,415	1,124	6,560	1,124
Other-than-temporary impairment losses	0	12	0	12
Investment securities gains, net	2,415	1,112	6,560	1,112
Other	4,099	3,602	8,182	6,907
Total Non-Interest Income	46,489	44,872	91,226	83,378
NON-INTEREST EXPENSE
Salaries and employee benefits	65,067	63,623	130,057	123,189
Net occupancy expense	11,809	11,464	25,501	25,067
Other outside services	8,125	7,240	13,875	11,052
Data processing	4,894	4,331	9,662	8,127
Software	3,376	3,209	6,694	6,134
Equipment expense	3,335	3,360	7,293	6,962
Marketing	2,885	2,615	5,707	5,304
Supplies and postage	2,731	3,559	5,602	6,463
Telecommunications	2,726	2,451	5,095	4,777
Marketing	2,235	2,337	3,468	3,921
Telecommunications	1,617	1,787	3,333	3,606
Operating risk loss	674	716	1,501	2,544
Other real estate owned and repossession expense	129	748	1,491	1,731
Intangible amortization	106	315	236	630
Other	8,645	8,419	17,317	16,221
Total Non-Interest Expense	118,354	116,174	236,832	225,728
Income Before Income Taxes	48,855	53,096	102,395	109,113
Income taxes	12,175	13,500	25,679	27,734
Net Income	$ 36,680	$ 39,596	$ 76,716	$ 81,379
PER SHARE:
Net Income (Basic) (in dollars per share)	$ 0.21	$ 0.21	$ 0.43	$ 0.43
Net Income (Diluted) (in dollars per share)	0.21	0.21	0.43	0.43
Cash Dividends (in dollars per share)	$ 0.09	$ 0.08	$ 0.18	$ 0.16