Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and due from banks	$ 357,814	$ 437,947
Interest-bearing bank deposits	1,007,814	1,184,222
Federal funds sold	691	197
Securities available for sale, at fair value (amortized cost of $2,513,207 and $4,401,345)	2,578,531	4,496,900
Securities held to maturity (fair value of $ 1,814,603)	1,815,314	0
Loans held for sale	42,484	72,378
Loans	11,146,076	11,191,901
Less: allowance for loan losses	(142,337)	(124,881)
unearned income	(15,803)	(14,875)
Loans, net	10,987,936	11,052,145
Property and equipment, net of accumulated depreciation of $152,952 and $ 148,780	482,620	505,387
Prepaid expense	67,007	69,064
Other real estate, net	155,803	144,367
Accrued interest receivable	52,821	53,973
Goodwill	647,216	651,162
Other intangible assets, net	202,772	211,075
Life insurance contracts	361,197	355,026
FDIC loss share indemnification asset	222,570	212,885
Deferred tax asset, net	148,219	145,760
Other assets	160,288	181,608
Total assets	19,291,097	19,774,096
Deposits:
Non-interest bearing demand	5,242,973	5,516,336
Interest-bearing savings, NOW, money market and time	10,189,794	10,197,243
Total deposits	15,432,767	15,713,579
Short-term borrowings	850,289	1,044,454
Long-term debt	360,272	353,890
Accrued interest payable	9,093	8,284
Other liabilities	263,473	286,726
Total liabilities	16,915,894	17,406,933
Stockholders' Equity
Common stock - $3.33 par value per share; 350,000,000 shares authorized, 84,769,973 and 84,705,496 issued and outstanding, respectively	282,284	282,069
Capital surplus	1,638,225	1,634,634
Retained earnings	474,879	476,970
Accumulated other comprehensive income(loss), net	(20,185)	(26,510)
Total stockholders' equity	2,375,203	2,367,163
Total liabilities and stockholders' equity	$ 19,291,097	$ 19,774,096