Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014		Mar. 31, 2014
ASSETS
Cash and due from banks	$ 199,337	$ 204,231	[1]	$ 199,214
Interest bearing deposits with other banks	360,469	153,019	[1]	390,896
Available-for-sale securities, at fair value	2,194,373	2,156,927	[1]	2,426,758
Loans and leases	9,761,555	9,749,540	[1]	9,103,850
Less: Unearned income	34,585	36,604	[1]	35,474
Allowance for credit losses	136,660	142,443	[1]	149,704
Net loans and leases	9,590,310	9,570,493	[1]	8,918,672
Loans held for sale ($186,510 and $141,015 at fair value at March 31, 2015 and December 31, 2014, respectively	186,510	141,015	[1]	62,867
Premises and equipment, net	305,335	304,943	[1]	314,367
Accrued interest receivable	42,933	41,985	[1]	42,666
Goodwill	291,498	291,498	[1]	286,800
Other identifiable intangibles	23,476	24,508	[1]	25,021
Bank-owned life insurance	246,148	247,076	[1]	240,077
Other real estate owned	27,889	33,984	[1]	63,595
Other assets	162,044	156,690	[1]	172,622
TOTAL ASSETS	13,630,322	13,326,369	[1]	13,143,555
Deposits:
Demand: Noninterest bearing	2,914,949	2,778,686	[1]	2,725,042
Interest bearing	4,979,710	4,868,054	[1]	4,583,481
Savings	1,395,857	1,331,963	[1]	1,297,344
Other time	1,962,138	1,993,636	[1]	2,205,923
Total deposits	11,252,654	10,972,339	[1]	10,811,790
Federal funds purchased and securities sold under agreement to repurchase	384,829	388,166	[1]	456,303
Short-term Federal Home Loan Bank and other short-term borrowings	1,500	3,500	[1]
Accrued interest payable	3,371	3,400	[1]	4,050
Junior subordinated debt securities	23,198	23,198	[1]	23,198
Long-term debt	76,055	78,148	[1]	85,835
Other liabilities	243,507	251,559	[1]	207,703
TOTAL LIABILITIES	11,985,114	11,720,310	[1]	11,588,879
SHAREHOLDERS' EQUITY
Common stock, $2.50 par value per share Authorized - 500,000,000 shares; Issued - 96,544,502, 96,254,903 and 96,004,679 shares, respectively	241,361	240,637	[1]	240,012
Capital surplus	331,016	324,271	[1]	320,969
Accumulated other comprehensive (loss) income	(37,033)	(43,686)	[1]	(22,060)
Retained earnings	1,109,864	1,084,837	[1]	1,015,755
TOTAL SHAREHOLDERS' EQUITY	1,645,208	1,606,059	[1]	1,554,676
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 13,630,322	$ 13,326,369	[1]	$ 13,143,555

[1] Derived from audited financial statements.See accompanying notes to consolidated financial statements.