Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Interest Income:
Loans and leases, including fees	$ 149,538	$ 160,344
Securities:
Taxable	9,648	10,260
Tax-exempt	3,501	3,594
Dividends	1,765	1,166
Short-term investments	19	36
Total interest income	164,471	175,400
Deposits:
Interest-bearing demand and savings	3,962	4,901
Time	9,628	11,232
Federal Home Loan Bank short-term borrowings	4,621	3,371
Other short-term borrowings	2,100	2,153
Federal Home Loan Bank long-term borrowings	245	301
Other long-term debt	3,851	4,236
Total interest expense	24,407	26,194
Net interest income	140,064	149,206
Provision for loan and lease losses	6,000	12,000
Net interest income, after provision for loan and lease losses	134,064	137,206
Noninterest Income:
Service charges on deposit accounts	9,000	8,672
Vehicle origination and servicing fees	2,968	3,354
Wealth management commissions and fees	12,719	12,390
Commissions on property and casualty insurance sales	5,666	4,542
Other commissions and fees	5,035	4,328
Income from bank-owned life insurance	1,637	1,508
Mortgage banking revenue	2,410	4,110
Capital markets revenue	1,240	902
Net realized gain (loss) on sales and impairment of securities	(8)	18
Other	1,422	2,820
Total noninterest income	42,089	42,644
Noninterest Expenses:
Salaries and employee benefits	65,581	62,614
Occupancy	13,847	11,215
Furniture and equipment	3,944	3,578
Professional and technology services	6,070	5,729
Advertising and marketing	3,576	3,300
FDIC insurance	5,121	3,798
Legal fees	1,527	1,870
Amortization of intangible assets	2,539	3,268
Vehicle lease disposal	2,251	1,290
Other	18,576	21,067
Total noninterest expenses	123,032	117,729
Income before income taxes	53,121	62,121
Provision for income taxes	15,959	19,722
Net Income	$ 37,162	$ 42,399
Earnings per common share:
Basic	$ 0.20	$ 0.23
Diluted	$ 0.20	$ 0.23
Cash dividends per common share	$ 0.08	$ 0.00
Average common shares outstanding:
Basic	187,455	186,607
Diluted	188,378	187,442