Allowance For Loan Losses, Allowance For Losses On Lending-Related Commitments And Impaired Loans (Schedule of Aging Of The Company's Loan Portfolio) (Details) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010
Nonaccrual	$ 151,018	$ 133,239	$ 124,199
90+ days and still accruing	126,325	126,054	112,535
60-89 days and still accruing	66,655	53,470	61,262
30-59 days and still accruing	105,526	114,606	84,345
Current	9,884,222	9,506,870	9,217,385
Total loans, balance	10,333,746	9,934,239	9,599,726
Loans, net of unearned income excluding covered loans, Nonaccrual	151,018	133,239	124,199
Loans, net of unearned income excluding covered loans, 90+ days past due and still accruing	5,054	8,893	11,202
Loans, net of unearned income excluding covered loans, 60-89 days past due and still accruing	61,012	46,118	50,299
Loans, net of unearned income excluding covered loans, 30-59 days past due and still accruing	93,627	91,862	75,165
Loans, net of unearned income excluding covered loans, current	9,614,366	9,319,774	9,063,298
Loans, net of unearned income, excluding covered loans	9,925,077	9,599,886	9,324,163
Covered loans, 90+ days past due and still accruing	121,271	117,161	101,333
Covered loans, 60-89 days past due and still accruing	5,643	7,352	10,963
Covered loans, 30-59 days past due and still accruing	11,899	22,744	9,180
Covered loans, Current	269,856	187,096	154,087
Covered loans	408,669	334,353	275,563
Commercial Loans [Member] | Commercial and Industrial [Member]
Nonaccrual	22,289	15,922	16,456
90+ days and still accruing		478	99
60-89 days and still accruing	7,164	4,416	7,211
30-59 days and still accruing	23,754	9,928	5,781
Current	1,309,455	1,280,009	1,200,955
Total loans, balance	1,362,662	1,310,753	1,230,502
Loans, net of unearned income, excluding covered loans	1,362,662	1,310,753	1,230,502
Commercial Loans [Member] | Franchise [Member]
Nonaccrual	1,792
30-59 days and still accruing		2,250
Current	112,342	117,238	138,687
Total loans, balance	114,134	119,488	138,687
Loans, net of unearned income, excluding covered loans	114,134	119,488	138,687
Commercial Loans [Member] | Mortgage Warehouse Lines of Credit [Member]
Current	68,477	131,306	118,823
Total loans, balance	68,477	131,306	118,823
Loans, net of unearned income, excluding covered loans	68,477	131,306	118,823
Commercial Loans [Member] | Community Advanatage - Homeowners Association [Member]
Current	73,929	75,542	62,452
Total loans, balance	73,929	75,542	62,452
Loans, net of unearned income, excluding covered loans	73,929	75,542	62,452
Commercial Loans [Member] | Aircraft [Member]
60-89 days and still accruing		178	178
30-59 days and still accruing		1,000
Current	21,231	23,440	38,396
Total loans, balance	21,231	24,618	38,574
Loans, net of unearned income, excluding covered loans	21,231	24,618	38,574
Commercial Loans [Member] | Asset-Based Lending [Member]
Nonaccrual	2,087	417	1,219
60-89 days and still accruing		161	270
30-59 days and still accruing	2,415	2,846
Current	361,594	285,555	178,997
Total loans, balance	366,096	288,979	180,486
Loans, net of unearned income, excluding covered loans	366,096	288,979	180,486
Commercial Loans [Member] | Municipal [Member]
Current	63,296	56,343	35,797
Total loans, balance	63,296	56,343	35,797
Loans, net of unearned income, excluding covered loans	63,296	56,343	35,797
Commercial Loans [Member] | Leases [Member]
Nonaccrual		43	66
60-89 days and still accruing			891
30-59 days and still accruing	763
Current	61,772	41,498	21,338
Total loans, balance	62,535	41,541	22,295
Loans, net of unearned income, excluding covered loans	62,535	41,541	22,295
Commercial Loans [Member] | Other [Member]
Current	76	756	2
Total loans, balance	76	756	2
Loans, net of unearned income, excluding covered loans	76	756	2
Commercial Real-Estate Loans [Member] | Residential Construction [Member]
Nonaccrual	3,011	10,010	15,468
60-89 days and still accruing	938	96	6,166
30-59 days and still accruing	5,245	1,801	3,035
Current	81,561	84,040	104,793
Total loans, balance	90,755	95,947	129,462
Loans, net of unearned income, excluding covered loans	90,755	95,947	129,462
Commercial Real-Estate Loans [Member] | Commercial Construction [Member]
Nonaccrual	2,453	1,820	6,140
60-89 days and still accruing	7,579
30-59 days and still accruing	7,075	1,481	2,117
Current	120,540	128,371	179,919
Total loans, balance	137,647	131,672	188,176
Loans, net of unearned income, excluding covered loans	137,647	131,672	188,176
Commercial Real-Estate Loans [Member] | Land [Member]
Nonaccrual	33,980	37,602	21,699
60-89 days and still accruing	10,281	6,815	5,313
30-59 days and still accruing	8,076	11,915	8,721
Current	160,597	203,857	233,823
Total loans, balance	212,934	260,189	269,556
Loans, net of unearned income, excluding covered loans	212,934	260,189	269,556
Commercial Real-Estate Loans [Member] | Office [Member]
Nonaccrual	17,503	12,718	2,991
90+ days and still accruing			1,194
60-89 days and still accruing	1,648	9,121	193
30-59 days and still accruing	3,846	3,202	8,423
Current	509,385	510,290	522,740
Total loans, balance	532,382	535,331	535,541
Loans, net of unearned income, excluding covered loans	532,382	535,331	535,541
Commercial Real-Estate Loans [Member] | Industrial [Member]
Nonaccrual	2,470	3,480	5,540
60-89 days and still accruing	2,689	686	5,612
30-59 days and still accruing	2,480	2,276	3,530
Current	506,895	493,859	458,033
Total loans, balance	514,534	500,301	472,715
Loans, net of unearned income, excluding covered loans	514,534	500,301	472,715
Commercial Real-Estate Loans [Member] | Retail [Member]
Nonaccrual	8,164	3,265	5,174
60-89 days and still accruing	3,778	4,088	1,906
30-59 days and still accruing	14,806	3,839	4,712
Current	498,040	499,335	472,745
Total loans, balance	524,788	510,527	484,537
Loans, net of unearned income, excluding covered loans	524,788	510,527	484,537
Commercial Real-Estate Loans [Member] | Multi-Family [Member]
Nonaccrual	4,947	4,794	11,074
60-89 days and still accruing	4,628	1,573	421
30-59 days and still accruing	3,836	3,062	1,498
Current	302,740	281,525	263,888
Total loans, balance	316,151	290,954	276,881
Loans, net of unearned income, excluding covered loans	316,151	290,954	276,881
Commercial Real-Estate Loans [Member] | Mixed Use and Other [Member]
Nonaccrual	17,265	20,274	14,898
90+ days and still accruing			1,054
60-89 days and still accruing	9,350	8,481	11,156
30-59 days and still accruing	4,201	15,059	10,476
Current	1,014,661	969,272	953,371
Total loans, balance	1,045,477	1,013,086	990,955
Loans, net of unearned income, excluding covered loans	1,045,477	1,013,086	990,955
Commercial Loans [Member]
Nonaccrual	26,168	16,382	17,741
90+ days and still accruing		478	99
60-89 days and still accruing	7,164	4,755	8,550
30-59 days and still accruing	26,932	16,024	5,781
Current	2,072,172	2,011,687	1,795,447
Total loans, balance	2,132,436	2,049,326	1,827,618
Loans, net of unearned income, excluding covered loans	2,132,436	2,049,326	1,827,618
Commercial Real-Estate Loans [Member]
Nonaccrual	89,793	93,963	82,984
90+ days and still accruing			2,248
60-89 days and still accruing	40,891	30,860	30,767
30-59 days and still accruing	49,565	42,635	42,512
Current	3,194,419	3,170,549	3,189,312
Total loans, balance	3,374,668	3,338,007	3,347,823
Loans, net of unearned income, excluding covered loans	3,374,668	3,338,007	3,347,823
Home Equity [Member]
Nonaccrual	15,853	7,425	7,149
60-89 days and still accruing	1,502	2,181	1,063
30-59 days and still accruing	4,081	7,098	4,253
Current	859,266	897,708	909,840
Total loans, balance	880,702	914,412	922,305
Loans, net of unearned income, excluding covered loans	880,702	914,412	922,305
Residential Real Estate [Member]
Nonaccrual	7,379	6,085	4,436
60-89 days and still accruing	1,272	1,836	1,379
30-59 days and still accruing	949	8,224	2,489
Current	319,781	337,191	324,369
Total loans, balance	329,381	353,336	332,673
Loans, net of unearned income, excluding covered loans	329,381	353,336	332,673
Commercial Insurance [Member]
Nonaccrual	10,309	8,587	11,389
90+ days and still accruing	4,446	8,096	6,350
60-89 days and still accruing	5,089	6,076	3,938
30-59 days and still accruing	7,897	16,584	9,944
Current	1,401,695	1,226,157	1,315,364
Total loans, balance	1,429,436	1,265,500	1,346,985
Loans, net of unearned income, excluding covered loans	1,429,436	1,265,500	1,346,985
Life Insurance [Member]
Nonaccrual	670	180
90+ days and still accruing	324		1,923
60-89 days and still accruing	4,873		3,960
30-59 days and still accruing	3,254		7,712
Current	957,808	826,119	576,793
Total loans, balance	966,929	826,299	590,388
Loans, net of unearned income, excluding covered loans	966,929	826,299	590,388
Purchased Life Insurance [Member]
Nonaccrual		174
Current	652,739	695,413	788,269
Total loans, balance	652,739	695,587	788,269
Loans, net of unearned income, excluding covered loans	652,739	695,587	788,269
Indirect Consumer [Member]
Nonaccrual	89	191	438
90+ days and still accruing	284	318	579
60-89 days and still accruing	98	301	204
30-59 days and still accruing	531	918	1,453
Current	56,716	49,419	66,337
Total loans, balance	57,718	51,147	69,011
Loans, net of unearned income, excluding covered loans	57,718	51,147	69,011
Consumer and Other [Member]
Nonaccrual	757	252	62
90+ days and still accruing		1	3
60-89 days and still accruing	123	109	438
30-59 days and still accruing	418	379	1,021
Current	99,770	105,531	97,567
Total loans, balance	101,068	106,272	99,091
Loans, net of unearned income, excluding covered loans	$ 101,068	$ 106,272	$ 99,091