LOANS AND LEASES (Loan And Lease Portfolio, Net Of Unearned Income, By Segment, Class And Internally Assigned Grade) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015
Financing Receivable, Recorded Investment [Line Items]
Total	$ 10,575,978	$ 10,372,778	$ 10,007,571
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	10,306,701
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	814
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	227,113
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	730
Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	384
Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	40,236
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,698,089	1,747,774
Commercial And Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,654,279	1,721,118
Commercial And Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	36,866	19,529
Commercial And Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	91
Commercial And Industrial [Member] | Loss [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	384
Commercial And Industrial [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	6,469	7,127
Real Estate [Member] | Consumer Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,549,989	2,472,202
Real Estate [Member] | Consumer Mortgages [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,482,105	2,399,081
Real Estate [Member] | Consumer Mortgages [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	298
Real Estate [Member] | Consumer Mortgages [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	66,614	68,768
Real Estate [Member] | Consumer Mortgages [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	14	363
Real Estate [Member] | Consumer Mortgages [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	958	3,990
Real Estate [Member] | Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	614,686	589,752
Real Estate [Member] | Home Equity [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	603,039	577,539
Real Estate [Member] | Home Equity [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	10,163	10,418
Real Estate [Member] | Home Equity [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,484	1,795
Real Estate [Member] | Agricultural [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	251,566	259,360
Real Estate [Member] | Agricultural [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	242,721	250,579
Real Estate [Member] | Agricultural [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	8,085	7,909
Real Estate [Member] | Agricultural [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	760	872
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,644,618	1,617,429
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,585,978	1,554,984
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	516
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	45,682	50,304
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	375
Real Estate [Member] | Commercial And Industrial - Owner Occupied [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	12,067	12,141
Real Estate [Member] | Construction, Acquisition And Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,021,218	945,045
Real Estate [Member] | Construction, Acquisition And Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	1,003,045	920,372
Real Estate [Member] | Construction, Acquisition And Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	12,809	17,090
Real Estate [Member] | Construction, Acquisition And Development [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	5,364	7,583
Real Estate [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,254,653	2,188,048
Real Estate [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	2,202,501	2,124,448
Real Estate [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	38,867	45,658
Real Estate [Member] | Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	151	161
Real Estate [Member] | Commercial Real Estate [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	13,134	17,781
Credit Cards [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	108,101	112,165
Credit Cards [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	108,101	112,165
All Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	433,058	441,003
All Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	424,932	433,333
All Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	8,027	7,465
All Other [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total	$ 99	102
All Other [Member] | Impaired [Member]
Financing Receivable, Recorded Investment [Line Items]
Total		$ 103