Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Interest Income
Interest and fees on loans	$ 75,796	$ 76,270
Interest on securities:
Taxable	18,384	19,992
Tax exempt	1,366	1,383
Interest on federal funds sold and securities purchased under reverse repurchase agreements	6	8
Other interest income	330	332
Total Interest Income	95,882	97,985
Interest Expense
Interest on deposits	7,353	9,719
Interest on federal funds purchased and securities sold under repurchase agreements	171	338
Other interest expense	1,414	1,553
Total Interest Expense	8,938	11,610
Net Interest Income	86,944	86,375
Provision for loan losses, LHFI	3,293	7,537
Provision for loan losses, acquired loans	(194)	0
Net Interest Income After Provision for Loan Losses	83,845	78,838
Noninterest Income
Service charges on deposit accounts	12,211	11,907
Bank card and other fees	7,364	6,475
Mortgage banking, net	7,295	4,722
Insurance commissions	6,606	6,512
Wealth management	5,501	5,986
Other, net	3,758	762
Securities gains, net	1,050	7
Total Noninterest Income	43,785	36,371
Noninterest Expense
Salaries and employee benefits	46,432	44,036
Services and fees	10,747	10,270
Net occupancy - premises	4,938	5,073
Equipment expense	4,912	5,144
ORE/Foreclosure expense	3,902	3,213
FDIC assessment expense	1,775	2,750
Other expense	13,068	9,532
Total Noninterest Expense	85,774	80,018
Income Before Income Taxes	41,856	35,191
Income taxes	11,536	11,178
Net Income	$ 30,320	$ 24,013
Earnings Per Common Share
Basic (in dollars per share)	$ 0.47	$ 0.38
Diluted (in dollars per share)	$ 0.47	$ 0.37
Dividends Per Common Share (in dollars per share)	$ 0.23	$ 0.23