LOANS AND LEASES (Aging Of Loan And Lease Portfolio, Net Of Unearned Income, By Segment And Class) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Aging of loan and lease portfolio [Abstract]
Total Past Due	$ 82,250	$ 68,132
Current	10,729,741	10,304,646
Total	10,811,991	10,372,778
90 Plus Days Past Due still Accruing	3,983	2,013
30 to 59 Days Past Due [Member]
Aging of loan and lease portfolio [Abstract]
Total Past Due	25,344	24,724
60 to 89 Days Past Due [Member]
Aging of loan and lease portfolio [Abstract]
Total Past Due	11,767	10,020
90 + Days Past Due [Member]
Aging of loan and lease portfolio [Abstract]
Total Past Due	45,139	$ 33,388
Commercial And Industrial [Member]
Aging of loan and lease portfolio [Abstract]
Total	1,612,295
Consumer Mortgages [Member]
Aging of loan and lease portfolio [Abstract]
Total	2,643,966
Home Equity [Member]
Aging of loan and lease portfolio [Abstract]
Total	628,846
Agricultural [Member]
Aging of loan and lease portfolio [Abstract]
Total	245,377
Credit Cards [Member]
Aging of loan and lease portfolio [Abstract]
Total	109,656
All Other [Member]
Aging of loan and lease portfolio [Abstract]
Total	412,619
Commercial And Industrial-Owner Occupied [Member]
Aging of loan and lease portfolio [Abstract]
Total	1,764,265
Construction, Acquisition And Development [Member]
Aging of loan and lease portfolio [Abstract]
Total	1,157,248
Commercial Real Estate [Member]
Aging of loan and lease portfolio [Abstract]
Total	$ 2,237,719

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5111-111524

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- References

No definition available.

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- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953401-111524

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

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- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5074-111524

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