LOANS AND LEASES (Composition Of The Loans And Leases Outstanding At By Credit Quality Indicator) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Not covered under loss share agreements in loans and leases	$ 11,576,115	$ 11,581,637
Total covered loans acquired	1,809,235	2,362,152
Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	7,994,495	7,866,572
Total covered loans acquired	1,450,035	1,872,685
Non-Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	3,581,620	3,715,065
Total covered loans acquired	359,200	489,467
Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	309,190	381,163
Total covered loans acquired	237,906	338,873
Construction and Land Development [Member] | Non-Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	131,992	137,271
Total covered loans acquired	20,793	105,536
Commercial Mortgage [Member]
Total covered loans acquired	1,054,473	1,260,589
Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	5,341,839	5,104,993
Total covered loans acquired	1,054,473	1,260,589
Other Commercial Real Estate [Member]
Total covered loans acquired	107,119	158,394
Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	160,980	144,771
Total covered loans acquired	107,119	158,394
Commercial and Industrial [Member]
Total covered loans acquired	49,463	113,442
Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,726,126	1,764,407
Total covered loans acquired	49,463	113,442
Lease Financing [Member]
Total covered loans acquired	0	57
Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	330,679	312,869
Total covered loans acquired	0	57
Residential Mortgage [Member]
Total covered loans acquired	297,926	327,568
Residential Mortgage [Member] | Non-Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	822,889	784,118
Total covered loans acquired	297,926	327,568
Revolving Mortgage [Member]
Total covered loans acquired	38,710	51,552
Revolving Mortgage [Member] | Non-Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	2,210,133	2,296,306
Total covered loans acquired	38,710	51,552
Consumer And Other [Member]
Total covered loans acquired	2,845	6,141
Consumer [Member] | Non-Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	416,606	497,370
Total covered loans acquired	1,771	4,811
Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	125,681	158,369
Total covered loans acquired	1,074	1,330
Impaired At Acquisition Date [Member]
Total covered loans acquired	290,626	458,305
Impaired At Acquisition Date [Member] | Commercial Loans [Member]
Total covered loans acquired	217,807	317,240
Impaired At Acquisition Date [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	72,819	141,065
Impaired At Acquisition Date [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Total covered loans acquired	71,225	117,603
Impaired At Acquisition Date [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	15,136	78,108
Impaired At Acquisition Date [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Total covered loans acquired	107,281	138,465
Impaired At Acquisition Date [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Total covered loans acquired	35,369	33,370
Impaired At Acquisition Date [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Total covered loans acquired	3,932	27,802
Impaired At Acquisition Date [Member] | Lease Financing [Member] | Commercial Loans [Member]
Total covered loans acquired	0	0
Impaired At Acquisition Date [Member] | Residential Mortgage [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	48,077	46,130
Impaired At Acquisition Date [Member] | Revolving Mortgage [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	9,606	15,350
Impaired At Acquisition Date [Member] | Consumer [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	0	1,477
Impaired At Acquisition Date [Member] | Other Loans [Member] | Commercial Loans [Member]
Total covered loans acquired	0	0
All Other Acquired Loans [Member]
Total covered loans acquired	1,518,609	1,903,847
All Other Acquired Loans [Member] | Commercial Loans [Member]
Total covered loans acquired	1,232,228	1,555,445
All Other Acquired Loans [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	286,381	348,402
All Other Acquired Loans [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Total covered loans acquired	166,681	221,270
All Other Acquired Loans [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	5,657	27,428
All Other Acquired Loans [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Total covered loans acquired	947,192	1,122,124
All Other Acquired Loans [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Total covered loans acquired	71,750	125,024
All Other Acquired Loans [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Total covered loans acquired	45,531	85,640
All Other Acquired Loans [Member] | Lease Financing [Member] | Commercial Loans [Member]
Total covered loans acquired	0	57
All Other Acquired Loans [Member] | Residential Mortgage [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	249,849	281,438
All Other Acquired Loans [Member] | Revolving Mortgage [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	29,104	36,202
All Other Acquired Loans [Member] | Consumer [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	1,771	3,334
All Other Acquired Loans [Member] | Other Loans [Member] | Commercial Loans [Member]
Total covered loans acquired	1,074	1,330
Pass [Member]
Total covered loans acquired	650,661	743,881
Pass [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	7,459,277	7,232,547
Pass [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	274,480	332,742
Total covered loans acquired	17,010	29,321
Pass [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	334	4,958
Pass [Member] | Commercial Mortgage [Member]
Total covered loans acquired	376,974	397,526
Pass [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	5,018,677	4,749,254
Pass [Member] | Other Commercial Real Estate [Member]
Total covered loans acquired	33,570	49,259
Pass [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	151,549	130,586
Pass [Member] | Commercial and Industrial [Member]
Total covered loans acquired	19,451	36,409
Pass [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,564,862	1,556,651
Pass [Member] | Lease Financing [Member]
Total covered loans acquired	0	57
Pass [Member] | Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	325,626	306,225
Pass [Member] | Residential Mortgage [Member]
Total covered loans acquired	172,165	189,794
Pass [Member] | Revolving Mortgage [Member]
Total covered loans acquired	29,540	34,164
Pass [Member] | Consumer And Other [Member]
Total covered loans acquired	1,617	2,393
Pass [Member] | Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	124,083	157,089
Special Mention [Member]
Total covered loans acquired	331,614	550,617
Special Mention [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	200,073	287,788
Special Mention [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	14,666	18,973
Total covered loans acquired	25,734	92,758
Special Mention [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	0	13,394
Special Mention [Member] | Commercial Mortgage [Member]
Total covered loans acquired	259,264	348,482
Special Mention [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	161,789	220,235
Special Mention [Member] | Other Commercial Real Estate [Member]
Total covered loans acquired	17,518	33,754
Special Mention [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	2,812	5,821
Special Mention [Member] | Commercial and Industrial [Member]
Total covered loans acquired	12,465	32,257
Special Mention [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	18,368	36,951
Special Mention [Member] | Lease Financing [Member]
Total covered loans acquired	0	0
Special Mention [Member] | Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,601	4,537
Special Mention [Member] | Residential Mortgage [Member]
Total covered loans acquired	14,863	25,464
Special Mention [Member] | Revolving Mortgage [Member]
Total covered loans acquired	1,736	3,566
Special Mention [Member] | Consumer And Other [Member]
Total covered loans acquired	34	942
Special Mention [Member] | Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	837	1,271
Substandard [Member]
Total covered loans acquired	616,692	787,309
Substandard [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	196,257	196,325
Substandard [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	18,761	28,793
Total covered loans acquired	105,061	125,158
Substandard [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	17,190	72,349
Substandard [Member] | Commercial Mortgage [Member]
Total covered loans acquired	344,542	427,996
Substandard [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	145,980	129,391
Substandard [Member] | Other Commercial Real Estate [Member]
Total covered loans acquired	44,335	58,351
Substandard [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	5,038	7,794
Substandard [Member] | Commercial and Industrial [Member]
Total covered loans acquired	14,698	21,914
Substandard [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	24,059	28,240
Substandard [Member] | Lease Financing [Member]
Total covered loans acquired	0	0
Substandard [Member] | Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,663	2,107
Substandard [Member] | Residential Mortgage [Member]
Total covered loans acquired	83,193	70,582
Substandard [Member] | Revolving Mortgage [Member]
Total covered loans acquired	7,434	9,863
Substandard [Member] | Consumer And Other [Member]
Total covered loans acquired	239	1,096
Substandard [Member] | Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	756	0
Doubtful [Member]
Total covered loans acquired	182,568	246,308
Doubtful [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	16,336	2,201
Doubtful [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	952	17
Total covered loans acquired	87,445	87,936
Doubtful [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	3,269	14,835
Doubtful [Member] | Commercial Mortgage [Member]
Total covered loans acquired	73,016	84,871
Doubtful [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	12,822	1,164
Doubtful [Member] | Other Commercial Real Estate [Member]
Total covered loans acquired	11,696	17,030
Doubtful [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	98	377
Doubtful [Member] | Commercial and Industrial [Member]
Total covered loans acquired	2,757	22,862
Doubtful [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,693	643
Doubtful [Member] | Lease Financing [Member]
Total covered loans acquired	0	0
Doubtful [Member] | Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	771	0
Doubtful [Member] | Residential Mortgage [Member]
Total covered loans acquired	4,268	13,833
Doubtful [Member] | Revolving Mortgage [Member]
Total covered loans acquired	0	3,959
Doubtful [Member] | Consumer And Other [Member]
Total covered loans acquired	117	982
Doubtful [Member] | Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	0	0
Ungraded [Member]
Total covered loans acquired	27,700	34,037
Ungraded [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	122,552	147,711
Ungraded [Member] | Tobacco Buyout Loans [Member]
Not covered under loss share agreements in loans and leases	43,110	63,129
Ungraded [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	331	638
Total covered loans acquired	2,656	3,700
Ungraded [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Total covered loans acquired	0	0
Ungraded [Member] | Commercial Mortgage [Member]
Total covered loans acquired	677	1,714
Ungraded [Member] | Commercial Mortgage [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	2,571	4,949
Ungraded [Member] | Other Commercial Real Estate [Member]
Total covered loans acquired	0	0
Ungraded [Member] | Other Commercial Real Estate [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,483	193
Ungraded [Member] | Commercial and Industrial [Member]
Total covered loans acquired	92	0
Ungraded [Member] | Commercial and Industrial [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	117,144	141,922
Ungraded [Member] | Lease Financing [Member]
Total covered loans acquired	0	0
Ungraded [Member] | Lease Financing [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	1,018	0
Ungraded [Member] | Residential Mortgage [Member]
Total covered loans acquired	23,437	27,895
Ungraded [Member] | Revolving Mortgage [Member]
Total covered loans acquired	0	0
Ungraded [Member] | Consumer And Other [Member]
Total covered loans acquired	838	728
Ungraded [Member] | Other Loans [Member] | Commercial Loans [Member]
Not covered under loss share agreements in loans and leases	5	9
Noncovered Loans [Member]
Current	11,441,555	11,481,709
31-60 days past due	64,528	46,999
61-90 days past due	19,620	13,647
Over 90 days past due	50,412	39,282
Total Loans and Leases	11,576,115	11,581,637
Noncovered Loans [Member] | Non-Commercial Loans [Member]
Current	3,514,794	3,670,540
31-60 days past due	34,925	19,539
61-90 days past due	12,954	6,126
Over 90 days past due	18,947	18,860
Total Loans and Leases	3,581,620	3,715,065
Noncovered Loans [Member] | Construction and Land Development [Member] | Commercial Loans [Member]
Current	300,385	374,869
31-60 days past due	927	2,623
61-90 days past due	0	1,494
Over 90 days past due	7,878	2,177
Total Loans and Leases	309,190	381,163
Noncovered Loans [Member] | Construction and Land Development [Member] | Non-Commercial Loans [Member]
Current	128,764	135,774
31-60 days past due	1,941	798
61-90 days past due	490	127
Over 90 days past due	797	572
Total Loans and Leases	131,992	137,271
Noncovered Loans [Member] | Commercial Mortgage [Member]
Current	5,296,459	5,066,621
31-60 days past due	21,075	18,308
61-90 days past due	3,987	4,438
Over 90 days past due	20,318	15,626
Total Loans and Leases	5,341,839	5,104,993
Noncovered Loans [Member] | Other Commercial Real Estate [Member]
Current	158,319	143,406
31-60 days past due	387	657
61-90 days past due	1,240	147
Over 90 days past due	1,034	561
Total Loans and Leases	160,980	144,771
Noncovered Loans [Member] | Commercial and Industrial [Member]
Current	1,717,019	1,756,504
31-60 days past due	6,205	5,235
61-90 days past due	1,288	1,230
Over 90 days past due	1,614	1,438
Total Loans and Leases	1,726,126	1,764,407
Noncovered Loans [Member] | Lease Financing [Member]
Current	328,929	311,400
31-60 days past due	991	637
61-90 days past due	138	212
Over 90 days past due	621	620
Total Loans and Leases	330,679	312,869
Noncovered Loans [Member] | Residential Mortgage [Member]
Current	786,626	757,113
31-60 days past due	15,711	11,790
61-90 days past due	7,559	2,686
Over 90 days past due	12,993	12,529
Total Loans and Leases	822,889	784,118
Noncovered Loans [Member] | Residential Mortgage [Member] | Non-Commercial Loans [Member]
Current	786,626	757,113
31-60 days past due	15,711	11,790
61-90 days past due	7,559	2,686
Over 90 days past due	12,993	12,529
Total Loans and Leases	822,889	784,118
Noncovered Loans [Member] | Revolving Mortgage [Member]
Current	2,190,186	2,286,511
31-60 days past due	12,868	3,437
61-90 days past due	3,200	2,042
Over 90 days past due	3,879	4,316
Total Loans and Leases	2,210,133	2,296,306
Noncovered Loans [Member] | Revolving Mortgage [Member] | Non-Commercial Loans [Member]
Current	2,190,186	2,286,511
31-60 days past due	12,868	3,437
61-90 days past due	3,200	2,042
Over 90 days past due	3,879	4,316
Total Loans and Leases	2,210,133	2,296,306
Noncovered Loans [Member] | Consumer [Member]
Current	409,218	491,142
31-60 days past due	4,405	3,514
61-90 days past due	1,705	1,271
Over 90 days past due	1,278	1,443
Total Loans and Leases	416,606	497,370
Noncovered Loans [Member] | Consumer [Member] | Non-Commercial Loans [Member]
Current	409,218	491,142
31-60 days past due	4,405	3,514
61-90 days past due	1,705	1,271
Over 90 days past due	1,278	1,443
Total Loans and Leases	416,606	497,370
Noncovered Loans [Member] | Other Loans [Member]
Current	125,650	158,369
31-60 days past due	18	0
61-90 days past due	13	0
Over 90 days past due	0	0
Total Loans and Leases	$ 125,681	$ 158,369