Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INTEREST INCOME
Interest and fees on loans	$ 152,030	$ 146,219	$ 442,046	$ 438,642
Interest and dividends on investment securities
Taxable	25,037	21,544	77,403	64,603
Tax exempt	7,483	6,711	21,484	20,461
Other interest	1,503	1,260	4,814	3,740
Total interest income	186,053	175,734	545,747	527,446
INTEREST EXPENSE
Interest on deposits	6,621	7,617	18,975	23,927
Interest on Federal funds purchased and securities sold under agreements to repurchase	390	308	1,001	1,051
Interest on other short-term funding	233	434	629	1,291
Interest on long-term funding	6,179	6,866	18,836	22,833
Total interest expense	13,423	15,225	39,441	49,102
NET INTEREST INCOME	172,630	160,509	506,306	478,344
Provision for credit losses	1,000	(800)	11,000	7,800
Net interest income after provision for credit losses	171,630	161,309	495,306	470,544
NONINTEREST INCOME
Trust service fees	12,218	11,380	35,946	33,695
Service charges on deposit accounts	17,961	18,407	51,773	52,679
Card-based and other nondeposit fees	12,407	12,688	37,493	37,229
Insurance commissions	7,860	11,356	33,828	32,750
Brokerage and annuity commissions	4,040	3,792	12,593	10,996
Mortgage banking, net	6,669	3,542	18,392	40,570
Capital market fees, net	2,939	2,652	7,360	10,309
Bank owned life insurance income	3,506	2,817	10,837	9,068
Asset gains (losses), net	4,934	1,934	6,561	2,726
Investment securities gains (losses), net	57	248	469	582
Other	2,317	2,100	5,424	6,622
Total noninterest income	74,908	70,916	220,676	237,226
NONINTEREST EXPENSE
Personnel expense	97,650	98,102	293,141	295,800
Occupancy	13,743	14,758	43,088	44,725
Equipment	6,133	6,213	18,636	18,842
Technology	13,573	12,323	40,891	36,482
Business development and advertising	7,467	5,947	17,606	15,512
Other intangible asset amortization	990	1,010	2,972	3,032
Loan expense	3,813	3,157	10,220	9,485
Legal and professional fees	4,604	3,482	13,228	14,310
Losses other than loans	677	(600)	1,602	283
Foreclosure/OREO expense	2,083	2,515	5,554	7,239
FDIC expense	6,859	4,755	16,805	14,582
Other	14,261	13,509	43,693	41,190
Total noninterest expense	171,853	165,171	507,436	501,482
Income before income taxes	74,685	67,054	208,546	206,288
Income tax expense	24,478	21,396	66,775	65,354
Net income	50,207	45,658	141,771	140,934
Preferred stock dividends	1,255	1,285	3,777	3,885
Net income available to common equity	$ 48,952	$ 44,373	$ 137,994	$ 137,049
Earnings per common share:
Basic	$ 0.31	$ 0.27	$ 0.86	$ 0.82
Diluted	$ 0.31	$ 0.27	$ 0.85	$ 0.82
Average common shares outstanding:
Basic	155,925	164,954	159,090	166,586
Diluted	156,991	165,443	159,993	166,760