LOANS AND LEASES (Aging Of The Outstanding Loans And Leases By Class Excluding Loans Impaired At Acquisition Date) (Details) (Noncovered Loans [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
31-60 days past due	$ 64,528	$ 46,999
61-90 days past due	19,620	13,647
Greater Than 90 Days	50,412	39,282
Total Past Due	134,560	99,928
Current	11,441,555	11,481,709
Total Loans and Leases	11,576,115	11,581,637
Commercial Mortgage [Member]
31-60 days past due	21,075	18,308
61-90 days past due	3,987	4,438
Greater Than 90 Days	20,318	15,626
Total Past Due	45,380	38,372
Current	5,296,459	5,066,621
Total Loans and Leases	5,341,839	5,104,993
Other Commercial Real Estate [Member]
31-60 days past due	387	657
61-90 days past due	1,240	147
Greater Than 90 Days	1,034	561
Total Past Due	2,661	1,365
Current	158,319	143,406
Total Loans and Leases	160,980	144,771
Commercial and Industrial [Member]
31-60 days past due	6,205	5,235
61-90 days past due	1,288	1,230
Greater Than 90 Days	1,614	1,438
Total Past Due	9,107	7,903
Current	1,717,019	1,756,504
Total Loans and Leases	1,726,126	1,764,407
Lease Financing [Member]
31-60 days past due	991	637
61-90 days past due	138	212
Greater Than 90 Days	621	620
Total Past Due	1,750	1,469
Current	328,929	311,400
Total Loans and Leases	330,679	312,869
Other Loans [Member]
31-60 days past due	18	0
61-90 days past due	13	0
Greater Than 90 Days	0	0
Total Past Due	31	0
Current	125,650	158,369
Total Loans and Leases	125,681	158,369
Residential Mortgage [Member]
31-60 days past due	15,711	11,790
61-90 days past due	7,559	2,686
Greater Than 90 Days	12,993	12,529
Total Past Due	36,263	27,005
Current	786,626	757,113
Total Loans and Leases	822,889	784,118
Revolving Mortgage [Member]
31-60 days past due	12,868	3,437
61-90 days past due	3,200	2,042
Greater Than 90 Days	3,879	4,316
Total Past Due	19,947	9,795
Current	2,190,186	2,286,511
Total Loans and Leases	2,210,133	2,296,306
Consumer [Member]
31-60 days past due	4,405	3,514
61-90 days past due	1,705	1,271
Greater Than 90 Days	1,278	1,443
Total Past Due	7,388	6,228
Current	409,218	491,142
Total Loans and Leases	416,606	497,370
Commercial Loans [Member] | Construction and Land Development [Member]
31-60 days past due	927	2,623
61-90 days past due	0	1,494
Greater Than 90 Days	7,878	2,177
Total Past Due	8,805	6,294
Current	300,385	374,869
Total Loans and Leases	309,190	381,163
Non-Commercial Loans [Member]
31-60 days past due	34,925	19,539
61-90 days past due	12,954	6,126
Greater Than 90 Days	18,947	18,860
Current	3,514,794	3,670,540
Total Loans and Leases	3,581,620	3,715,065
Non-Commercial Loans [Member] | Construction and Land Development [Member]
31-60 days past due	1,941	798
61-90 days past due	490	127
Greater Than 90 Days	797	572
Total Past Due	3,228	1,497
Current	128,764	135,774
Total Loans and Leases	131,992	137,271
Non-Commercial Loans [Member] | Residential Mortgage [Member]
31-60 days past due	15,711	11,790
61-90 days past due	7,559	2,686
Greater Than 90 Days	12,993	12,529
Current	786,626	757,113
Total Loans and Leases	822,889	784,118
Non-Commercial Loans [Member] | Revolving Mortgage [Member]
31-60 days past due	12,868	3,437
61-90 days past due	3,200	2,042
Greater Than 90 Days	3,879	4,316
Current	2,190,186	2,286,511
Total Loans and Leases	2,210,133	2,296,306
Non-Commercial Loans [Member] | Consumer [Member]
31-60 days past due	4,405	3,514
61-90 days past due	1,705	1,271
Greater Than 90 Days	1,278	1,443
Current	409,218	491,142
Total Loans and Leases	$ 416,606	$ 497,370