Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011		Mar. 31, 2011
ASSETS
Cash and due from banks	$ 188,789		$ 219,256		$ 168,528
Interest-bearing deposits in banks	301,196		158,063		470,253
Total cash and cash equivalents	489,985		377,319		638,781
Investment securities
Held-to-maturity	100,840		82,764		65,923
Available-for-sale	3,491,647		3,353,553		3,362,751
Other investments	140,713		140,726		160,818
Loans held for sale	42,447		30,077		13,443
Noncovered loans:
Commercial loans	5,220,051		5,107,747		4,565,376
Mortgage loans	428,950		413,664		399,380
Installment loans	1,259,930		1,263,665		1,282,170
Home equity loans	739,548		743,982		736,947
Credit card loans	140,618		146,356		141,864
Loans and Leases Receivable, Gross, Consumer, Lease Financing	74,112		73,530		60,487
Total noncovered loans	7,863,209	[1]	7,748,944	[1]	7,186,224	[1]
Allowance for noncovered loan losses	(103,849)		(107,699)		(114,690)
Net noncovered loans	7,759,360		7,641,245		7,071,534
Covered loans (includes loss share receivable of $171.1 million, $205.7 million and $266.0 million at March 31, 2012, December 31, 2011 and March 31, 2011, respectively.)	1,378,150	[2]	1,497,140	[2]	1,870,255	[2]
Allowance for covered loan losses	(41,070)		(36,417)		(28,405)
Net covered loans	1,337,080		1,460,723		1,841,850
Net loans	9,096,440		9,101,968		8,913,384
Premises and equipment, net	188,347		192,949		192,630
Goodwill	460,044		460,044		460,044
Intangible assets	7,756		8,239		9,868
Covered other real estate (includes loss share receivable of $0.7 million, $1.3 million and $7.9 million at March 31, 2012, December 31, 2011 and March 31, 2011, respectively)	56,411		54,505		58,688
Accrued interest receivable and other assets	596,188		639,558		590,179
Total assets	14,670,818		14,441,702		14,466,509
Deposits:
Noninterest bearing	3,136,595		3,030,225		2,925,088
Interest bearing	1,119,102		1,062,896		815,593
Savings and money market accounts	5,742,547		5,595,409		5,188,815
Certificates and other time deposits	1,649,921		1,743,079		2,466,450
Total deposits	11,648,165		11,431,609		11,395,946
Federal funds purchased and securities sold under agreements to repurchase	928,760		866,265		952,995
Wholesale borrowings	176,611		203,462		325,046
Accrued taxes, expenses, and other liabilities	333,177		374,413		272,565
Total liabilities	13,086,713		12,875,749		12,946,552
Shareholders' equity:
Preferred stock, without par value	0		0		0
Common stock, without par value; authorized 300,000,000 shares; issued: March 31, 2012, December 31, 2011 and March 31, 2011 - 115,121,731 shares	127,937		127,937		127,937
Capital surplus	484,491		479,882		488,770
Accumulated other comprehensive loss	(22,172)		(23,887)		(25,765)
Retained earnings	1,144,210		1,131,203		1,091,160
Treasury stock, at cost: March 31, 2012 -5,935,169 shares; December 31, 2011 - 5,870,923 shares; March 31, 2011 - 6,387,924 shares	(150,361)		(149,182)		(162,145)
Total shareholders' equity	1,584,105		1,565,953		1,519,957
Total liabilities and shareholders' equity	14,670,818		14,441,702		14,466,509
Series A preferred stock
Shareholders' equity:
Preferred stock, without par value	0		0		0
Convertible preferred stock Series B
Shareholders' equity:
Preferred stock, without par value	$ 0		$ 0		$ 0

[1] (a)Includes acquired, noncovered loans of $99.2 million, $113.2 million, and $196.3 million as of March 31, 2012,December 31, 2011 and March 31, 2011, respectively.

[2] Includes loss share receivable of $171.1 million, $205.7 million, and $266.0 million as of March 31, 2012, December 31, 2011 and March 31, 2011, respectively.