Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets
Cash and due from banks (noninterest-bearing)	$ 245,132	$ 161,544
Federal funds sold and securities purchased under reverse repurchase agreements	8,810	11,773
Securities available for sale (at fair value)	2,476,905	2,177,249
Securities held to maturity (fair value: $76,007-2011; $145,143-2010)	71,046	140,847
Loans held for sale (LHFS)	210,269	153,044
Loans held for investment (LHFI), excluding covered loans	5,783,712	6,060,242
Less allowance for loan losses	89,463	93,510
Net LHFI, excluding covered loans	5,694,249	5,966,732
Covered loans	79,064	0
Net LHFI and covered loans	5,773,313	5,966,732
Premises and equipment, net	141,639	142,289
Mortgage servicing rights	43,659	51,151
Goodwill	291,104	291,104
Identifiable intangible assets	14,861	16,306
Other real estate, excluding covered other real estate	89,597	86,704
Covered other real estate	7,197	0
FDIC indemnification asset	33,436	0
Other assets	298,953	355,159
Total Assets	9,705,921	9,553,902
Liabilities
Noninterest-bearing	1,871,040	1,636,625
Interest-bearing	5,698,684	5,407,942
Total deposits	7,569,724	7,044,567
Federal funds purchased and securities sold under repurchase agreements	576,672	700,138
Short-term borrowings	98,887	425,343
Long-term FHLB advances	741	0
Subordinated notes	49,831	49,806
Junior subordinated debt securities	61,856	61,856
Other liabilities	126,604	122,708
Total Liabilities	8,484,315	8,404,418
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 64,119,235 shares - 2011;63,917,591 shares - 2010	13,359	13,318
Capital surplus	264,750	256,675
Retained earnings	923,891	890,917
Accumulated other comprehensive income (loss), net of tax	19,606	(11,426)
Total Shareholders' Equity	1,221,606	1,149,484
Total Liabilities and Shareholders' Equity	$ 9,705,921	$ 9,553,902