Consolidated Statement of Income (Loss) (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
INTEREST INCOME
Interest and fees on loans	$ 582,739	$ 608,487	$ 752,265
Interest and dividends on investment securities
Taxable	123,371	155,031	189,157
Tax exempt	29,937	33,915	35,799
Other interest	5,575	8,693	4,035
Total interest income	741,622	806,126	981,256
INTEREST EXPENSE
Interest on deposits	65,748	106,023	160,874
Interest on short-term funding	12,411	7,983	16,199
Interest on long-term funding	50,632	58,341	78,178
Total interest expense	128,791	172,347	255,251
NET INTEREST INCOME	612,831	633,779	726,005
Provision for loan losses	52,000	390,010	750,645
Net interest income (loss) after provision for loan losses	560,831	243,769	(24,640)
NONINTEREST INCOME
Trust service fees	39,145	37,853	36,009
Service charges on deposit accounts	75,908	96,740	116,918
Card-based and other nondeposit fees	57,905	59,299	55,077
Retail commission income	62,784	61,256	60,678
Mortgage banking, net	12,723	33,136	40,882
Capital market fees, net	8,711	6,072	5,536
Bank owned life insurance income	14,896	15,761	16,032
Asset sale gains (losses), net	(2,849)	(2,004)	(4,071)
Investment securities gains (losses), net:
Realized gains (losses), net	(228)	28,854	11,705
Other-than-temporary impairments	(2,417)	(6,058)	(4,406)
Less: Non-credit portion recognized in other comprehensive income (before taxes)	1,533	2,121	1,475
Total investment securities gains (losses), net	(1,112)	24,917	8,774
Other	14,358	12,493	15,126
Total noninterest income	282,469	345,523	350,961
NONINTEREST EXPENSE
Personnel expense	358,295	323,249	304,390
Occupancy	55,939	49,937	49,341
Equipment	19,873	18,371	18,385
Data processing	32,475	29,714	30,893
Business development and advertising	23,038	18,385	18,033
Other intangible amortization	4,714	4,919	5,543
Loan expense	12,008	9,965	10,186
Legal and professional fees	18,205	20,439	19,562
Losses other than loans	17,921	14,793	16,954
Foreclosure/OREO expense	30,743	33,844	38,129
FDIC expense	28,484	46,377	41,934
Other	58,178	60,327	58,070
Total noninterest expense	659,873	630,320	611,420
Income (loss) before income taxes	183,427	(41,028)	(285,099)
Income tax expense (benefit)	43,728	(40,172)	(153,240)
Net income (loss)	139,699	(856)	(131,859)
Preferred stock dividends and discount accretion	24,830	29,531	29,348
Net income (loss) available to common equity	$ 114,869	$ (30,387)	$ (161,207)
Earnings (loss) per common share:
Basic	$ 0.66	$ (0.18)	$ (1.26)
Diluted	$ 0.66	$ (0.18)	$ (1.26)
Average common shares outstanding:
Basic	173,370	171,230	127,858
Diluted	173,372	171,230	127,858