Consolidated Statements of Income (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Interest income:
Loans, including fees	$ 74,574	$ 78,766	$ 149,254	$ 159,380
Investment securities:
Taxable	29,208	32,348	59,463	69,681
Tax-exempt	2,386	1,783	4,514	3,416
Other interest income	1,676	183	1,751	425
Total interest income	107,844	113,080	214,982	232,902
Interest expense:
Savings deposits	2,232	2,410	4,494	4,891
Time deposits	8,145	12,822	16,915	25,875
Securities sold under repurchase agreements	10,613	11,235	21,199	22,287
Other borrowings	445	129	1,095	440
Junior subordinated interest deferrable debentures	2,998	3,047	6,035	6,077
Total interest expense	24,433	29,643	49,738	59,570
Net interest income	83,411	83,437	165,244	173,332
(Credit) provision for probable loan losses	(1,917)	1,429	2,163	8,658
Net interest income after (credit) provision for probable loan losses	85,328	82,008	163,081	164,674
Non-interest income:
Service charges on deposit accounts	23,918	24,954	48,700	49,234
Other service charges, commissions and fees
Banking	14,412	12,167	27,438	23,787
Non-banking	1,177	1,855	2,669	3,523
Gain on investment securities transactions, net	1,445	2,573	2,861	30,837
Other investments, net	4,220	4,116	9,576	7,473
Other income	2,692	3,735	4,986	6,144
Total non-interest income	47,864	49,400	96,230	120,998
Non-interest expense:
Employee compensation and benefits	32,620	32,498	64,655	64,162
Occupancy	9,015	8,724	17,616	17,242
Depreciation of bank premises and equipment	7,931	8,969	16,258	17,981
Professional fees	3,689	3,781	7,575	7,763
Deposit insurance assessments	2,592	2,668	5,049	5,212
Net expense, other real estate owned	8,150	905	9,264	1,885
Amortization of identified intangible assets	1,323	1,324	2,626	2,625
Advertising	1,840	2,453	3,627	5,067
Litigation expense				21,803
Impairment charges (Total other-than-temporary impairment charges, $(254), net of $(420), $17, net of ($241), $1,055, net of $640, and $4,045, net of $(3,416) included in other comprehensive income)	166	258	415	7,461
Other	16,616	17,884	32,322	33,842
Total non-interest expense	83,942	79,464	159,407	185,043
Income before income taxes	49,250	51,944	99,904	100,629
Provision for income taxes	16,626	17,936	33,759	34,575
Net income	32,624	34,008	66,145	66,054
Preferred Stock Dividends	3,315	3,277	6,620	6,545
Net income available to common shareholders	$ 29,309	$ 30,731	$ 59,525	$ 59,509
Basic earnings per common share:
Weighted average number of shares outstanding: (in shares)	67,628,223	68,063,899	67,664,567	68,083,089
Net income (in dollars per share)	$ 0.43	$ 0.45	$ 0.88	$ 0.87
Fully diluted earnings per common share:
Weighted average number of shares outstanding: (in shares)	67,689,784	68,163,864	67,734,494	68,184,767
Net income (in dollars per share)	$ 0.43	$ 0.45	$ 0.88	$ 0.87