Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
ASSETS
Cash and due from banks	$ 172,782	$ 154,192	$ 159,923
Interest bearing deposits with other banks	151,944	43,777	113,068
Available-for-sale securities, at fair value	2,468,199	2,082,329	2,161,125
Loans and leases	10,685,166	10,404,326	10,254,013
Less: Unearned income	26,405	31,548	34,437
Allowance for credit losses	125,887	126,458	133,009
Net loans and leases	10,532,874	10,246,320	10,086,567
Loans held for sale, at fair value	204,441	157,907	170,175
Premises and equipment, net	305,245	308,125	304,317
Accrued interest receivable	41,583	40,901	41,599
Goodwill	294,901	291,498	291,498
Other identifiable intangibles	19,908	20,545	21,466
Bank-owned life insurance	257,015	251,534	249,825
Other real estate owned	11,391	14,759	23,696
Other assets	151,200	186,775	164,165
TOTAL ASSETS	14,611,483	13,798,662	13,787,424
Deposits:
Demand: Noninterest bearing	3,308,361	3,031,528	3,053,439
Interest bearing	4,877,482	5,003,806	4,794,656
Savings	1,533,401	1,442,336	1,409,856
Other time	1,870,815	1,853,491	1,883,995
Total deposits	11,590,059	11,331,161	11,141,946
Federal funds purchased and securities sold under agreement to repurchase	468,969	405,937	425,203
Short-term Federal Home Loan Bank and other short-term borrowings		62,000	224,500
Accrued interest payable	4,107	3,071	3,353
Junior subordinated debt securities	23,198	23,198	23,198
Long-term debt	563,495	69,775	71,868
Other liabilities	237,551	248,076	252,536
TOTAL LIABILITIES	12,887,379	12,143,218	12,142,604
SHAREHOLDERS' EQUITY
Common stock, $2.50 par value per share Authorized - 500,000,000 shares; Issued - 94,074,740, 94,162,728 and 93,969,994 shares, respectively	235,187	235,407	234,925
Capital surplus	278,973	282,934	278,998
Accumulated other comprehensive (loss) income	(33,549)	(41,825)	(36,355)
Retained earnings	1,243,493	1,178,928	1,167,252
TOTAL SHAREHOLDERS' EQUITY	1,724,104	1,655,444	1,644,820
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 14,611,483	$ 13,798,662	$ 13,787,424