Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Interest Income:
Loans and leases, including fees	$ 148,002	$ 159,986	$ 297,540	$ 320,330
Securities:
Taxable	9,104	9,683	18,752	19,943
Tax-exempt	3,439	3,561	6,940	7,155
Dividends	2,134	1,146	3,899	2,312
Short-term investments	23	35	42	71
Total interest income	162,702	174,411	327,173	349,811
Deposits:
Interest-bearing demand and savings	4,031	4,513	7,993	9,414
Time	10,246	11,654	19,874	22,886
Federal Home Loan Bank short-term borrowings	4,597	3,452	9,218	6,823
Other short-term borrowings	2,031	2,153	4,131	4,306
Federal Home Loan Bank long-term borrowings	243	303	488	604
Other long-term debt	(140)	4,239	3,711	8,475
Total interest expense	21,008	26,314	45,415	52,508
Net interest income	141,694	148,097	281,758	297,303
Provision for loan and lease losses	3,000	12,000	9,000	24,000
Net interest income, after provision for loan and lease losses	138,694	136,097	272,758	273,303
Noninterest Income:
Service charges on deposit accounts	9,294	9,347	18,294	18,019
Vehicle origination and servicing fees	2,915	2,407	5,883	5,761
Wealth management commissions and fees	12,669	13,289	25,388	25,679
Commissions on property and casualty insurance sales	4,214	4,360	9,880	8,902
Other commissions and fees	5,401	4,727	10,436	9,055
Income from bank-owned life insurance	1,672	1,520	3,309	3,028
Mortgage banking revenue	3,004	3,998	5,414	8,108
Capital markets revenue	877	3,256	2,117	4,158
Net realized gain (loss) on sales and impairment of securities	3,293	(71)	3,285	(53)
Other	2,010	6,243	3,432	9,063
Total noninterest income	45,349	49,076	87,438	91,720
Noninterest Expenses:
Salaries and employee benefits	68,325	66,888	133,906	129,502
Occupancy	11,914	11,154	25,761	22,369
Furniture and equipment	4,058	3,747	8,002	7,325
Professional and technology services	7,189	5,831	13,259	11,560
Advertising and marketing	3,567	2,465	7,143	5,765
FDIC insurance	4,925	4,541	10,046	8,339
Legal fees	1,656	1,810	3,183	3,680
Amortization of intangible assets	2,367	3,053	4,906	6,321
Vehicle lease disposal	2,215	1,313	4,466	2,603
Other	19,009	18,936	37,585	40,003
Total noninterest expenses	125,225	119,738	248,257	237,467
Income before income taxes	58,818	65,435	111,939	127,556
Provision for income taxes	15,324	19,787	31,283	39,509
Net Income	$ 43,494	$ 45,648	$ 80,656	$ 88,047
Earnings per common share:
Basic	$ 0.23	$ 0.24	$ 0.43	$ 0.47
Diluted	$ 0.23	$ 0.24	$ 0.43	$ 0.47
Cash dividends per common share	$ 0.08	$ 0.08	$ 0.16	$ 0.08
Average common shares outstanding:
Basic	187,637	186,812	187,547	186,710
Diluted	188,295	187,723	188,296	187,612