Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
INTEREST INCOME
Interest and fees on loans	$ 146,219	$ 149,647	$ 438,642	$ 445,858
Interest and dividends on investment securities
Taxable	21,544	20,548	64,603	66,577
Tax exempt	6,711	7,127	20,461	21,536
Other interest	1,260	1,334	3,740	3,843
Total interest income	175,734	178,656	527,446	537,814
INTEREST EXPENSE
Interest on deposits	7,617	9,751	23,927	32,340
Interest on Federal funds purchased and securities sold under agreements to repurchase	308	750	1,051	2,129
Interest on other short-term funding	434	815	1,291	3,068
Interest on long-term funding	6,866	11,738	22,833	35,740
Total interest expense	15,225	23,054	49,102	73,277
NET INTEREST INCOME	160,509	155,602	478,344	464,537
Provision for loan losses	0	0	8,000	0
Net interest income after provision for loan losses	160,509	155,602	470,344	464,537
NONINTEREST INCOME
Trust service fees	11,380	10,396	33,695	30,308
Service charges on deposit accounts	18,407	17,290	52,679	52,100
Card-based and other nondeposit fees	12,688	12,209	37,229	35,172
Insurance commissions	11,356	11,650	32,750	36,152
Brokerage and annuity commissions	3,792	3,632	10,996	11,965
Mortgage banking, net	3,542	15,581	40,570	49,970
Capital market fees, net	2,652	3,609	10,309	9,998
Bank owned life insurance income	2,817	3,290	9,068	10,746
Asset gains (losses), net	1,934	(3,309)	2,726	(11,887)
Investment securities gains (losses), net:
Realized gains (losses), net	248	3,506	582	4,109
Other-than-temporary impairments	0	(59)	0	(59)
Less: Non-credit portion recognized in other comprehensive income (before taxes)	0	59	0	59
Total investment securities gains (losses), net	248	3,506	582	4,109
Other	2,100	3,134	6,622	6,752
Total noninterest income	70,916	80,988	237,226	235,385
NONINTEREST EXPENSE
Personnel expense	98,102	95,231	295,800	283,331
Occupancy	14,758	14,334	44,725	43,521
Equipment	6,213	5,935	18,842	17,122
Data processing	12,323	11,022	36,482	31,842
Business development and advertising	5,947	5,059	15,512	15,908
Other intangible amortization	1,010	1,048	3,032	3,146
Loan expense	3,157	3,297	9,485	9,155
Legal and professional fees	3,482	7,686	14,310	23,058
Losses other than loans	(1,400)	3,577	83	9,187
Foreclosure/OREO expense	2,515	4,071	7,239	11,776
FDIC expense	4,755	5,017	14,582	14,665
Other	13,509	13,426	41,190	42,784
Total noninterest expense	164,371	169,703	501,282	505,495
Income before income taxes	67,054	66,887	206,288	194,427
Income tax expense	21,396	20,492	65,354	62,082
Net income	45,658	46,395	140,934	132,345
Preferred stock dividends	1,285	1,300	3,885	3,900
Net income available to common equity	$ 44,373	$ 45,095	$ 137,049	$ 128,445
Earnings per common share:
Basic	$ 0.27	$ 0.26	$ 0.82	$ 0.74
Diluted	$ 0.27	$ 0.26	$ 0.82	$ 0.74
Average common shares outstanding:
Basic	164,954	171,650	166,586	172,774
Diluted	165,443	171,780	166,760	172,848