Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011		Jun. 30, 2011
ASSETS
Cash and due from banks	$ 224,084	$ 195,681	[1]	$ 166,761
Interest bearing deposits with other banks	603,458	303,663	[1]	304,344
Available-for-sale securities, at fair value	2,462,831	2,513,518	[1]	2,560,824
Loans and leases	8,771,642	8,911,258	[1]	9,255,879
Less: Unearned income	39,247	40,947	[1]	41,326
Allowance for credit losses	175,847	195,118	[1]	197,627
Net loans	8,556,548	8,675,193	[1]	9,016,926
Loans held for sale	108,134	83,458	[1]	70,519
Premises and equipment, net	320,419	323,383	[1]	328,075
Accrued interest receivable	47,358	51,266	[1]	55,525
Goodwill	271,297	271,297	[1]	271,297
Bank owned life insurance	202,620	200,085	[1]	197,028
Other real estate owned	143,615	173,805	[1]	151,204
Other assets	207,454	204,502	[1]	244,547
TOTAL ASSETS	13,147,818	12,995,851	[1]	13,367,050
Deposits:
Demand: Noninterest bearing	2,312,044	2,269,799	[1]	2,096,655
Interest bearing	4,782,243	4,706,825	[1]	4,939,553
Savings	1,083,255	991,702	[1]	944,993
Other time	2,778,795	2,986,863	[1]	3,327,262
Total deposits	10,956,337	10,955,189	[1]	11,308,463
Federal funds purchased and securities sold under agreement to repurchase	361,990	373,933	[1]	426,097
Short-term Federal Home Loan Bank and other short-term borrowings	1,500	1,500	[1]	703
Accrued interest payable	7,161	8,644	[1]	11,348
Junior subordinated debt securities	160,312	160,312	[1]	160,312
Long-term Federal Home Loan Bank borrowings	33,500	33,500	[1]	35,000
Other liabilities	208,707	199,861	[1]	178,424
TOTAL LIABILITIES	11,729,507	11,732,939	[1]	12,120,347
SHAREHOLDERS' EQUITY
Common stock, $2.50 par value per share Authorized - 500,000,000 shares; Issued - 94,436,377, 83,483,796 and 83,488,962 shares, respectively	236,091	208,709	[1]	208,722
Capital surplus	310,388	227,567	[1]	226,362
Accumulated other comprehensive income (loss)	1,334	(2,261)	[1]	6,289
Retained earnings	870,498	828,897	[1]	805,330
TOTAL SHAREHOLDERS' EQUITY	1,418,311	1,262,912	[1]	1,246,703
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 13,147,818	$ 12,995,851	[1]	$ 13,367,050

[1] Derived from audited financial statements.