CONSOLIDATED BALANCE SHEETS (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Assets
Cash and due from banks	$ 249,496	$ 126,882	$ 224,363
Due from banks - interest-bearing	144,754	142,807	506,081
Federal funds sold	100,000	165,000	395,010
Securities available-for-sale (cost $7,042,934, $5,658,120, and $5,275,623 at September 30, 2011, December 31, 2010 and September 30, 2010, respectively):
Securities pledged as collateral	41,235	8,697	16,462
Held in portfolio	7,144,053	5,711,978	5,381,408
Trading securities	93,707	255,397	170,750
Loans and leases, excluding covered loans	12,164,209	11,386,628	11,418,625
Less: Allowance for loan and lease losses	263,348	257,007	274,167
Loans and leases, excluding covered loans, net	11,900,861	11,129,621	11,144,458
Covered loans, net of allowance for loan losses	1,550,103	1,790,133	1,910,133
Net loans and leases	13,450,964	12,919,754	13,054,591
Premises and equipment, net	140,871	128,426	123,427
Deferred tax asset	69,439	105,398	86,948
Goodwill	486,383	486,070	479,982
Customer-relationship intangibles, net	37,720	42,564	42,610
Affordable housing investments	109,863	99,670	98,667
Customers' acceptance liability	1,924	1,715	2,970
Other real estate owned ($102,848, $120,866 and $110,391 covered by FDIC loss share at September 30, 2011, December 31, 2010 and September 30, 2010, respectively)	147,369	178,183	168,853
FDIC indemnification asset	212,809	295,466	324,240
Other assets	673,673	685,111	747,254
Total assets	23,104,260	21,353,118	21,823,616
Liabilities
Demand deposits	10,308,547	8,457,178	8,455,164
Interest checking deposits	1,751,316	1,863,004	1,513,924
Money market deposits	6,474,818	6,344,749	6,711,758
Savings deposits	331,433	291,299	288,417
Time deposits-under $100,000	270,734	338,112	373,276
Time deposits-$100,000 and over	772,233	882,520	1,071,067
Total deposits	19,909,081	18,176,862	18,413,606
Short-term borrowings	30,640	153,444	156,359
Long-term debt	699,983	704,971	950,792
Reserve for off-balance sheet credit commitments	22,826	21,529	20,401
Acceptances outstanding	1,924	1,715	2,970
Other liabilities	276,637	264,203	255,358
Total liabilities	20,941,091	19,322,724	19,799,486
Redeemable noncontrolling interest	42,704	45,676	46,967
Commitments and contingencies
Equity
Common stock, par value $1.00 per share; 75,000,000 shares authorized; 53,885,886 shares issued at September 30, 2011, December 31, 2010 and September 30, 2010	53,886	53,886	53,886
Additional paid-in capital	489,037	487,868	487,919
Accumulated other comprehensive income	82,467	36,853	73,369
Retained earnings	1,578,747	1,482,037	1,447,569
Treasury shares, at cost - 1,401,598, 1,639,203 and 1,771,740 shares at September 30, 2011, December 31, 2010 and September 30, 2010, respectively	(83,672)	(101,065)	(110,769)
Total shareholders' equity	2,120,465	1,959,579	1,951,974
Noncontrolling interest		25,139	25,189
Total equity	2,120,465	1,984,718	1,977,163
Total liabilities and equity	$ 23,104,260	$ 21,353,118	$ 21,823,616