Consolidated Condensed Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Interest and dividend income:
Interest and fees on loans	$ 65,454	$ 66,441
Interest and dividends on:
Obligations of U.S. Government, its agencies and other securities	19,053	20,475
Obligations of states and political subdivisions	149	217
Other interest income	6	69
Total interest and dividend income	84,662	87,202
Interest on deposits:
Demand and savings deposits	991	1,775
Time deposits	6,734	10,650
Interest on borrowings:
Short-term borrowings	267	344
Long-term debt	7,357	7,053
Total interest expense	15,349	19,822
Net interest income	69,313	67,380
Provision for loan losses	14,100	16,550
Net interest income after provision for loan losses	55,213	50,830
Other income:
Income from fiduciary activities	3,722	3,422
Service charges on deposit accounts	4,245	4,746
Other service income	2,301	2,982
Checkcard fee income	2,976	2,444
Bank owned life insurance income	1,229	1,216
ATM fees	654	765
OREO devaluations	(2,535)	(1,145)
Other	2,438	2,280
Total other income	15,030	16,710
Gain on sale of securities	6,635	8,304
Other expense:
Salaries and employee benefits	25,064	25,171
Occupancy expense	3,000	3,117
Furniture and equipment expense	2,657	2,632
Data processing fees	1,253	1,593
Professional fees and services	4,874	4,856
Amortization of intangibles	669	936
Marketing	623	902
Insurance	2,269	2,198
Communication	1,556	1,769
State taxes	457	845
Other expense	3,924	3,871
Total other expense	46,346	47,890
Income before income taxes	30,532	27,954
Income taxes	8,336	7,175
Net income	22,196	20,779
Preferred stock dividends and accretion	1,464	1,452
Net income available to common shareholders	$ 20,732	$ 19,327
Per Common Share:
Basic	$ 1.35	$ 1.30
Diluted	$ 1.35	$ 1.30
Weighted average common shares outstanding
Basic	15,398,930	14,882,774
Diluted	15,403,420	14,882,774
Cash dividends declared	$ 0.94	$ 0.94