CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Interest income:
Loans	$ 387,381	$ 428,999	$ 1,164,665	$ 1,294,834
Money market investments	862	886	2,774	2,759
Investment securities	39,945	51,085	128,828	157,183
Trading account securities	5,815	10,788	17,669	29,332
Total interest income	434,003	491,758	1,313,936	1,484,108
Interest Expense Abstract
Deposits	43,000	65,868	143,193	213,419
Short-term borrowings	9,876	13,744	36,503	41,478
Long-term debt	37,701	42,835	112,032	141,999
Total interest expense	90,577	122,447	291,728	396,896
Net interest income	343,426	369,311	1,022,208	1,087,212
Provision for loan losses	106,208	176,276	326,130	395,912
Net interest income after provision for loan losses	237,218	193,035	696,078	691,300
Service charges on deposit accounts	45,858	46,346	138,577	138,778
Other service fees	64,784	62,664	192,850	179,623
Net Gain Loss On Sale And Valuation Adjustments Of Investment Securities	64	8,134	(285)	8,044
Trading account profit	(2,266)	2,912	(11,692)	3,287
Net gain on sale of loans, including valuation adjustments on loans held-for-sale	18,495	20,294	18,569	14,756
Adjustments (expense) to indemnity reserves on loans sold	(8,717)	(10,285)	(17,990)	(29,587)
FDIC loss share (expense) income	(6,707)	(5,361)	(19,387)	49,344
Fair value change in equity appreciation instrument	0	0	0	8,323
Other operating income	4,198	(2,314)	32,699	38,350
Total non-interest income	115,709	122,390	333,341	410,918
Noninterest Expense Abstract
Personnel costs	111,550	111,724	349,377	328,823
Net occupancy expenses	24,409	25,885	73,534	76,428
Equipment Expense	11,447	10,517	33,688	33,314
Other taxes	12,666	12,391	38,178	38,986
Professional fees	53,412	48,756	153,644	144,923
Communication	6,500	6,800	20,276	21,198
Business promotion	14,924	14,650	44,754	35,842
FDIC deposit insurance	24,173	23,285	72,006	68,640
Loss on early extinguishment of debt	43	109	25,184	8,637
Other real estate owned (O R E O) expenses	5,896	3,234	22,441	11,885
Other operating expenses	22,854	22,541	73,714	63,555
Amortization of intangibles	2,481	2,463	7,605	6,973
Total operating expenses	290,355	282,355	914,401	839,204
Income before income tax	62,572	33,070	115,018	263,014
Income tax expense	15,384	5,537	(46,317)	114,664
Net income	47,188	27,533	161,335	148,350
Net income applicable to common stock	46,257	26,602	158,543	145,558
Net Income per Common Share - Basic	$ 0.45	$ 0.26	$ 1.55	$ 1.42
Net Income per Common Share - Diluted	$ 0.45	$ 0.26	$ 1.55	$ 1.42
Dividends Declared per Common Share	$ 0	$ 0	$ 0	$ 0
Non Covered Under Loss Sharing Agreements With F D I C [Member]
Interest Expense Abstract
Provision for loan losses	83,589	150,703	247,846	306,177
Covered Under Loss Sharing Agreements With F D I C [Member]
Interest Expense Abstract
Provision for loan losses	$ 22,619	$ 25,573	$ 78,284	$ 89,735