LOANS AND LEASES (Loan And Lease Portfolio, Net Of Unearned Income, By Segment, Class And Internally Assigned Grade) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	$ 8,773,115	$ 8,636,989
Pass [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	8,240,208	7,806,414
Special Mention [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	78,346	181,808
Substandard [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	371,879	485,217
Doubtful [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	2,832	6,538
Loss [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	105	284
Impaired [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	79,745	156,728
Commercial and industrial segment [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,503,809	1,476,611
Commercial and industrial segment [Member] | Pass [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,461,578	1,426,498
Commercial and industrial segment [Member] | Special Mention [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	7,774	14,663
Commercial and industrial segment [Member] | Substandard [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	31,596	29,876
Commercial and industrial segment [Member] | Doubtful [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		729
Commercial and industrial segment [Member] | Impaired [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	2,861	4,845
Real estate segment [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,931,171	1,873,875
Real estate segment [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	490,361	486,074
Real estate segment [Member] | Agricultural [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	234,547	256,196
Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,422,077	1,333,103
Real estate segment [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	723,609	735,808
Real estate segment [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,795,352	1,748,881
Real estate segment [Member] | Pass [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,794,492	1,691,682
Real estate segment [Member] | Pass [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	471,418	461,151
Real estate segment [Member] | Pass [Member] | Agricultural [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	210,065	227,138
Real estate segment [Member] | Pass [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,343,131	1,202,111
Real estate segment [Member] | Pass [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	637,448	567,881
Real estate segment [Member] | Pass [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,668,562	1,524,262
Real estate segment [Member] | Special Mention [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	22,114	32,840
Real estate segment [Member] | Special Mention [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	2,569	4,791
Real estate segment [Member] | Special Mention [Member] | Agricultural [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	3,044	5,729
Real estate segment [Member] | Special Mention [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	12,632	31,087
Real estate segment [Member] | Special Mention [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	8,450	30,846
Real estate segment [Member] | Special Mention [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	17,266	53,455
Real estate segment [Member] | Substandard [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	103,987	131,141
Real estate segment [Member] | Substandard [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	15,069	17,619
Real estate segment [Member] | Substandard [Member] | Agricultural [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	17,816	17,947
Real estate segment [Member] | Substandard [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	52,992	82,816
Real estate segment [Member] | Substandard [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	53,498	75,031
Real estate segment [Member] | Substandard [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	83,226	120,591
Real estate segment [Member] | Doubtful [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	918	2,907
Real estate segment [Member] | Doubtful [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		1,057
Real estate segment [Member] | Doubtful [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	475	369
Real estate segment [Member] | Doubtful [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,027	715
Real estate segment [Member] | Doubtful [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	412	160
Real estate segment [Member] | Loss [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		198
Real estate segment [Member] | Loss [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		76
Real estate segment [Member] | Loss [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	105
Real estate segment [Member] | Impaired [Member] | Consumer mortgages [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	9,660	15,107
Real estate segment [Member] | Impaired [Member] | Home equity [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	1,305	1,380
Real estate segment [Member] | Impaired [Member] | Agricultural [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	3,622	5,382
Real estate segment [Member] | Impaired [Member] | Commercial and industrial-owner occupied [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	12,742	16,720
Real estate segment [Member] | Impaired [Member] | Construction, acquisition and development [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	23,186	61,335
Real estate segment [Member] | Impaired [Member] | Commercial real estate [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	25,886	50,413
Credit cards segment [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	105,112	104,884
Credit cards segment [Member] | Pass [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	105,112	104,884
All other [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	567,077	621,557
All other [Member] | Pass [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	548,402	600,807
All other [Member] | Special Mention [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	4,497	8,397
All other [Member] | Substandard [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	13,695	10,196
All other [Member] | Doubtful [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		601
All other [Member] | Loss [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total		10
All other [Member] | Impaired [Member]
Loan and lease portfolio, net of unearned income, by grade [Abstract]
Total	$ 483	$ 1,546