LOANS AND LEASES (Aging Of Loan And Lease Portfolio, Net Of Unearned Income, By Segment And Class) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 73,635	$ 82,250
Current	10,944,905	10,729,741
Total	11,018,540	10,811,991	$ 10,575,978
90 Plus Days Past Due still Accruing	1,793	3,983
30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	21,849	25,344
60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	11,412	11,767
90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	40,374	45,139
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	12,790	13,993
Current	1,553,669	1,598,302
Total	1,566,459	1,612,295
90 Plus Days Past Due still Accruing	227	58
Commercial And Industrial [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,702	3,231
Commercial And Industrial [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,173	1,610
Commercial And Industrial [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	8,915	9,152
Credit Cards [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,169	1,264
Current	103,000	108,392
Total	104,169	109,656
90 Plus Days Past Due still Accruing	432	472
Credit Cards [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	491	466
Credit Cards [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	244	297
Credit Cards [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	434	501
All Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,313	928
Current	406,017	411,691
Total	407,330	412,619
All Other [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	870	550
All Other [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	352	148
All Other [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	91	230
Consumer Mortgages [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	29,328	34,232
Current	2,746,885	2,609,734
Total	2,776,213	2,643,966
90 Plus Days Past Due still Accruing	1,048	3,439
Consumer Mortgages [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	9,327	12,393
Consumer Mortgages [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,805	6,785
Consumer Mortgages [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	14,196	15,054
Home Equity [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,431	6,400
Current	619,437	622,446
Total	624,868	628,846
Home Equity [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,942	2,771
Home Equity [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	533	670
Home Equity [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,956	2,959
Agricultural [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,408	1,570
Current	239,238	243,807
Total	245,646	245,377
Agricultural [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,011	969
Agricultural [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	17	354
Agricultural [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,380	247
Commercial And Industrial - Owner Occupied [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	6,889	7,423
Current	1,788,432	1,756,842
Total	1,795,321	1,764,265
Commercial And Industrial - Owner Occupied [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,371	2,551
Commercial And Industrial - Owner Occupied [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,292	530
Commercial And Industrial - Owner Occupied [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,226	4,342
Construction, Acquisition And Development [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,720	3,984
Current	1,152,181	1,153,264
Total	1,156,901	1,157,248
90 Plus Days Past Due still Accruing		14
Construction, Acquisition And Development [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,519	2,101
Construction, Acquisition And Development [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	398	440
Construction, Acquisition And Development [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,803	1,443
Commercial Real Estate [Member] | Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,587	12,456
Current	2,336,046	2,225,263
Total	2,341,633	2,237,719
90 Plus Days Past Due still Accruing	86
Commercial Real Estate [Member] | Real Estate [Member] | 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	616	312
Commercial Real Estate [Member] | Real Estate [Member] | 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	598	933
Commercial Real Estate [Member] | Real Estate [Member] | 90+ Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 4,373	$ 11,211