Consolidated Condensed Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Interest and dividend income:
Interest and fees on loans	$ 56,388	$ 57,593	$ 112,163	$ 118,698
Interest and dividends on:
Obligations of U.S. Government, its agencies and other securities	8,673	13,794	18,915	27,378
Obligations of states and political subdivisions	16	42	33	88
Other interest income	202	57	360	160
Total interest and dividend income	65,279	71,486	131,471	146,324
Interest on deposits:
Demand and savings deposits	468	602	969	1,356
Time deposits	2,900	4,121	5,990	8,760
Interest on borrowings:
Short-term borrowings	134	163	278	338
Long-term debt	7,065	7,920	14,069	15,462
Total interest expense	10,567	12,806	21,306	25,916
Net interest income	54,712	58,680	110,165	120,408
Provision for loan losses	673	5,238	1,002	13,576
Net interest income after provision for loan losses	54,039	53,442	109,163	106,832
Other income:
Income from fiduciary activities	4,328	4,044	8,404	7,872
Service charges on deposit accounts	4,070	4,154	7,892	8,225
Other service income	3,352	3,417	7,337	6,151
Checkcard fee income	3,316	3,180	6,299	6,352
Bank owned life insurance income	1,254	1,184	2,456	2,386
ATM fees	677	536	1,304	1,144
OREO valuation adjustments	(600)	(2,648)	(199)	(4,007)
Gain on sale of OREO, net	1,633	2,203	1,857	3,248
Gain on sale of the Vision business	0		0	22,167
Other	1,268	1,438	2,753	3,590
Total other income	19,298	17,508	38,103	57,128
Other expense:
Salaries and employee benefits	24,679	22,813	49,312	47,636
Occupancy expense	2,444	2,249	5,041	4,919
Furniture and equipment expense	2,981	2,727	5,588	5,348
Data processing fees	1,049	899	2,068	2,099
Professional fees and services	5,880	5,800	11,744	11,381
Amortization of intangibles	113	140	225	1,894
Marketing	953	705	1,801	1,548
Insurance	1,338	1,400	2,640	2,890
Communication	1,453	1,494	3,033	3,031
Excise and Sales Taxes	928	933	1,856	1,922
Loan put provision	0	2,701	0	3,363
Other Real Estate Owned Expense	969	1,106	1,481	1,829
Other expense	3,783	2,837	7,879	6,414
Total other expense	46,570	45,804	92,668	94,274
Income (loss) before income taxes	26,767	25,146	54,598	69,686
Income taxes	6,733	6,260	13,854	19,325
Net income	20,034	18,886	40,744	50,361
Preferred stock dividends and accretion	0	1,948	0	3,425
Net income available to common shareholders	$ 20,034	$ 16,938	$ 40,744	$ 46,936
Net income available to common shareholders
Basic	$ 1.30	$ 1.10	$ 2.64	$ 3.05
Diluted	$ 1.30	$ 1.10	$ 2.64	$ 3.05
Weighted average common shares outstanding
Basic	15,411,981	15,405,902	15,411,986	15,405,906
Diluted	15,411,981	15,405,902	15,411,986	15,409,690
Cash dividends declared	$ 0.94	$ 0.94	$ 1.88	$ 1.88