Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash and due from banks	$ 414,760	$ 454,958
Interest-bearing deposits in other financial institutions	180,050	154,562
Federal funds sold and securities purchased under agreements to resell	3,800	7,075
Investment securities available for sale, at fair value	4,521,436	4,937,483
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost	176,041	191,188
Loans held for sale	157,481	249,195
Loans	14,698,902	14,031,071
Allowance for loan losses	(332,658)	(378,151)
Loans, net	14,366,244	13,652,920
Premises and equipment, net	225,245	223,736
Goodwill	929,168	929,168
Other intangible assets, net	64,812	67,574
Trading Assets	73,484	73,253
Other assets	968,579	983,105
Total assets	22,081,100	21,924,217
LIABILITIES AND STOCKHOLDERS' EQUITY
Noninterest-bearing demand deposits	3,874,429	3,928,792
Interest-bearing deposits	11,232,442	11,161,863
Total deposits	15,106,871	15,090,655
Federal funds purchased and securities sold under agreements to repurchase	1,253,270	1,514,485
Other short-term borrowed funds	1,400,000	1,000,000
Long-term funding	1,150,729	1,177,071
Trading liabilities	80,107	80,046
Accrued expenses and other liabilities	180,502	196,166
Total liabilities	19,171,479	19,058,423
Stockholders' equity
Preferred equity	63,272	63,272
Common stock	1,750	1,746
Surplus	1,594,995	1,586,401
Retained earnings	1,213,735	1,148,773
Accumulated other comprehensive income	66,579	65,602
Treasury stock, at cost	(30,710)	0
Total stockholders' equity	2,909,621	2,865,794
Total liabilities and stockholders' equity	$ 22,081,100	$ 21,924,217
Preferred shares issued	65,000	65,000
Preferred shares authorized (par value $1.00 per share)	750,000	750,000
Common shares issued	175,012,686	174,591,841
Common shares authorized (par value $0.01 per share)	250,000,000	250,000,000
Treasury shares of common stock	2,382,348	0