Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest income:
Loans, including fees	$ 215,656	$ 232,283	$ 432,210	$ 470,805
Investment securities available for sale	12,986	18,795	23,718	39,900
Trading account assets	124	236	278	515
Mortgage loans held for sale	1,411	1,129	3,118	2,496
Federal Reserve Bank balances	904	958	1,684	2,009
Other earning assets	432	408	895	739
Total interest income	231,513	253,809	461,903	516,464
Interest expense:
Deposits	15,894	25,898	32,610	56,385
Federal funds purchased and securities sold under repurchase agreements	80	170	170	350
Long-term debt	13,462	14,385	27,232	25,413
Total interest expense	29,436	40,453	60,012	82,148
Net interest income	202,077	213,356	401,891	434,316
Provision for loan losses	13,077	44,222	48,773	110,271
Net interest income after provision for loan losses	189,000	169,134	353,118	324,045
Non-interest income:
Service charges on deposit accounts	19,195	18,684	38,716	36,915
Fiduciary and asset management fees	11,111	10,792	22,083	21,627
Brokerage revenue	7,002	6,295	14,595	12,942
Mortgage banking income	7,338	7,983	14,255	13,986
Bankcard fees	7,838	8,493	14,902	16,072
Investment securities gains, net	1,403	4,170	1,448	24,253
Other fee income	5,775	4,951	11,262	9,651
(Decrease) increase in fair value of private equity investments, net	(883)	7,279	(1,140)	7,372
Other non-interest income	6,313	7,830	13,692	17,798
Total non-interest income	65,092	76,477	129,813	160,616
Non-interest expense:
Salaries and other personnel expense	89,479	95,173	183,396	187,795
Net occupancy and equipment expense	26,383	26,159	50,550	52,865
FDIC insurance and other regulatory fees	7,941	13,302	16,420	27,966
Foreclosed real estate expense, net	7,502	20,708	18,441	43,680
Losses (gains) on other loans held for sale, net	(86)	(1,058)	79	(99)
Professional fees	10,416	9,929	17,511	19,196
Third-party services	10,366	9,900	20,295	19,037
Visa Indemnification charge	764	1,734	801	4,713
Restructuring charges	1,758	1,393	6,607	2,252
Other operating expenses	26,663	31,024	49,372	53,994
Total non-interest expense	181,186	208,264	363,472	411,399
Income before income taxes	72,906	37,347	119,459	73,262
Income tax expense (benefit)	27,371	(2,105)	44,350	(2,182)
Net income	45,535	39,452	75,109	75,444
Dividends and accretion of discount on Series A Preferred Stock	14,818	14,649	29,594	29,272
Net income available to common shareholders	$ 30,717	$ 24,803	$ 45,515	$ 46,172
Earnings per common share:
Net income per common share, basic	$ 0.04	$ 0.03	$ 0.06	$ 0.06
Net income per common share, diluted	$ 0.03	$ 0.03	$ 0.05	$ 0.05
Weighted average common shares outstanding, basic	851,093	786,576	819,245	786,355
Weighted average common shares outstanding, diluted	910,937	909,761	910,886	909,542