Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
ASSETS
Cash and due from banks	$ 167,871	$ 184,152	$ 172,782
Interest bearing deposits with other banks	52,316	38,813	151,944
Available-for-sale securities, at fair value	2,359,967	2,531,676	2,468,199
Loans and leases	11,073,306	10,835,512	10,685,166
Less: Unearned income	17,797	23,521	26,405
Allowance for credit losses	119,496	123,736	125,887
Net loans and leases	10,936,013	10,688,255	10,532,874
Loans held for sale, at fair value	138,353	166,927	204,441
Premises and equipment, net	311,530	305,561	305,245
Accrued interest receivable	44,454	42,005	41,583
Goodwill	300,798	300,798	294,901
Other identifiable intangibles	18,860	21,894	19,908
Bank-owned life insurance	259,361	258,648	257,015
Other real estate owned	5,956	7,810	11,391
Other assets	164,915	177,849	151,200
TOTAL ASSETS	14,760,394	14,724,388	14,611,483
Deposits:
Demand: Noninterest bearing	3,414,397	3,250,537	3,308,361
Interest bearing	4,925,127	5,034,470	4,877,482
Savings	1,638,033	1,561,819	1,533,401
Other time	1,798,431	1,841,315	1,870,815
Total deposits	11,775,988	11,688,141	11,590,059
Securities sold under agreement to repurchase	421,044	454,002	468,969
Short-term borrowings	625,000	92,000
Accrued interest payable	4,826	3,975	4,107
Junior subordinated debt securities		12,888	23,198
Long-term debt	30,000	530,000	563,495
Other liabilities	203,034	219,499	237,551
TOTAL LIABILITIES	13,059,892	13,000,505	12,887,379
SHAREHOLDERS' EQUITY
Common stock, $2.50 par value per share Authorized - 500,000,000 shares; Issued - 90,329,896, 93,696,687 and 94,074,740 shares, respectively	225,825	234,242	235,187
Capital surplus	175,837	271,292	278,973
Accumulated other comprehensive (loss) income	(50,203)	(50,937)	(33,549)
Retained earnings	1,349,043	1,269,286	1,243,493
TOTAL SHAREHOLDERS' EQUITY	1,700,502	1,723,883	1,724,104
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 14,760,394	$ 14,724,388	$ 14,611,483