LOANS AND LEASES (Aging Of Loan And Lease Portfolio, Net Of Unearned Income, By Segment And Class) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	$ 26,597	$ 27,529
60-89 Days Past Due	6,910	5,996
90 Plus Days Past Due	19,434	19,487
Total Past Due	52,941	53,012
Current	9,674,029	9,659,924
Total	9,726,970	9,712,936
90 Plus Days Past Due still Accruing	1,615	2,763	1,949
Commercial And Industrial [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	2,112	2,322
60-89 Days Past Due	1,389	544
90 Plus Days Past Due	834	601
Total Past Due	4,335	3,467
Current	1,672,031	1,743,019
Total	1,676,366	1,746,486
90 Plus Days Past Due still Accruing	30	41
Real Estate [Member] | Consumer Mortgages [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	10,123	10,725
60-89 Days Past Due	2,558	3,797
90 Plus Days Past Due	9,415	11,167
Total Past Due	22,096	25,689
Current	2,279,016	2,232,037
Total	2,301,112	2,257,726
90 Plus Days Past Due still Accruing	1,256	1,828
Real Estate [Member] | Home Equity [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	2,453	1,834
60-89 Days Past Due	212	397
90 Plus Days Past Due	677	658
Total Past Due	3,342	2,889
Current	534,700	528,485
Total	538,042	531,374
Real Estate [Member] | Agricultural [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	186	365
60-89 Days Past Due	18	1
90 Plus Days Past Due	1	130
Total Past Due	205	496
Current	236,693	239,120
Total	236,898	239,616
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	2,639	1,005
60-89 Days Past Due	1,080	463
90 Plus Days Past Due	1,475	3,337
Total Past Due	5,194	4,805
Current	1,512,959	1,517,731
Total	1,518,153	1,522,536
90 Plus Days Past Due still Accruing		39
Real Estate [Member] | Construction, Acquisition And Development [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	5,052	4,547
60-89 Days Past Due	751	278
90 Plus Days Past Due	2,905	1,568
Total Past Due	8,708	6,393
Current	884,022	847,230
Total	892,730	853,623
90 Plus Days Past Due still Accruing		387
Real Estate [Member] | Commercial Real Estate [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	2,716	4,722
60-89 Days Past Due	483	1
90 Plus Days Past Due	3,697	1,545
Total Past Due	6,896	6,268
Current	1,986,577	1,955,709
Total	1,993,473	1,961,977
90 Plus Days Past Due still Accruing		137
Credit Cards [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	376	447
60-89 Days Past Due	240	312
90 Plus Days Past Due	352	379
Total Past Due	968	1,138
Current	105,319	112,288
Total	106,287	113,426
90 Plus Days Past Due still Accruing	329	327
All Other [Member]
Aging of loan and lease portfolio [Abstract]
30-59 Days Past Due	940	1,562
60-89 Days Past Due	179	203
90 Plus Days Past Due	78	102
Total Past Due	1,197	1,867
Current	462,712	484,305
Total	463,909	486,172
90 Plus Days Past Due still Accruing		$ 4