FAIR VALUE DISCLOSURES (Carrying And Fair Value Information) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013		Sep. 30, 2013
Assets [Abstract]
Available-for-sale securities	$ 2,211,462	$ 2,466,989	[1]	$ 2,554,156
Carrying Value [Member]
Assets [Abstract]
Cash and due from banks	169,226	208,961
Interest bearing deposits with other banks	70,408	319,462
Available-for-sale securities	2,211,462	2,466,989
Net loans and leases	9,366,592	8,804,779
Loans held for sale ($137,005 at fair value at September 30, 2014	137,005	69,593
Liabilities [Abstract]
Noninterest bearing deposits	2,811,156	2,644,592
Savings and interest bearing deposits	5,810,149	5,816,580
Other time deposits	2,080,232	2,312,664
Federal funds purchased and securities sold under agreement to repurchase and other short-term borrowings	433,428	421,028
Long-term debt and other borrowings	104,969	113,201
Derivative instruments [Abstract]
Forward commitments to sell fixed rate mortgage loans	(291)	654
Commitments to fund fixed rate mortgage loans	2,144	567
Interest rate swap position to receive	21,704	28,907
Interest rate swap position to pay	22,056	(29,249)
Fair Value [Member]
Assets [Abstract]
Cash and due from banks	169,226	208,961
Interest bearing deposits with other banks	70,408	319,462
Available-for-sale securities	2,211,462	2,466,989
Net loans and leases	9,822,000	9,059,171
Loans held for sale ($137,005 at fair value at September 30, 2014	137,005	70,063
Liabilities [Abstract]
Noninterest bearing deposits	2,811,156	2,644,592
Savings and interest bearing deposits	5,810,149	5,816,580
Other time deposits	2,092,783	2,332,380
Federal funds purchased and securities sold under agreement to repurchase and other short-term borrowings	433,468	414,238
Long-term debt and other borrowings	107,649	112,721
Derivative instruments [Abstract]
Forward commitments to sell fixed rate mortgage loans	(291)	654
Commitments to fund fixed rate mortgage loans	2,144	567
Interest rate swap position to receive	21,704	28,907
Interest rate swap position to pay	$ 22,056	$ (29,249)

[1] Derived from audited financial statements.See accompanying notes to consolidated financial statements.