Loans And Leases (Recorded Investment, By Class, In Loans And Leases On Nonaccrual Status And Loans And Leases Greater Than 90 Days Past Due And Still Accruing) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Nonaccrual loans and leases	$ 351,492	$ 238,838
Loans and leases > 90 days and accruing	59,169	160,204
Covered Loans [Member]
Nonaccrual loans and leases	291,889	160,024
Loans and leases > 90 days and accruing	41,282	141,703
Covered Loans [Member] | Commercial Loans [Member] | Construction And Land Development [Member]
Nonaccrual loans and leases	54,101	20,609
Loans and leases > 90 days and accruing	15,163	55,503
Covered Loans [Member] | Non-Commercial Loans [Member] | Construction And Land Development [Member]
Nonaccrual loans and leases	13,239	43,836
Loans and leases > 90 days and accruing	542	7,460
Covered Loans [Member] | Commercial Mortgage [Member]
Nonaccrual loans and leases	158,345	75,633
Loans and leases > 90 days and accruing	13,379	37,819
Covered Loans [Member] | Other Commercial Real Estate [Member]
Nonaccrual loans and leases	27,468	7,299
Loans and leases > 90 days and accruing	5,522	15,068
Covered Loans [Member] | Residential Mortgage [Member]
Nonaccrual loans and leases	29,308	3,594
Loans and leases > 90 days and accruing	5,604	2,010
Covered Loans [Member] | Revolving Mortgage [Member]
Nonaccrual loans and leases	0	403
Loans and leases > 90 days and accruing	0	190
Covered Loans [Member] | Commercial And Industrial [Member]
Nonaccrual loans and leases	8,467	8,488
Loans and leases > 90 days and accruing	212	22,829
Covered Loans [Member] | Consumer And Other [Member]
Nonaccrual loans and leases	961	162
Loans and leases > 90 days and accruing	860	824
Noncovered Loans [Member]
Nonaccrual loans and leases	59,603	78,814
Loans and leases > 90 days and accruing	17,887	18,501
Noncovered Loans [Member] | Commercial Loans [Member] | Construction And Land Development [Member]
Nonaccrual loans and leases	18,569	26,796
Loans and leases > 90 days and accruing	418	68
Noncovered Loans [Member] | Non-Commercial Loans [Member] | Construction And Land Development [Member]
Nonaccrual loans and leases	0	1,330
Loans and leases > 90 days and accruing	514	1,122
Noncovered Loans [Member] | Commercial Mortgage [Member]
Nonaccrual loans and leases	25,993	32,723
Loans and leases > 90 days and accruing	2,390	4,347
Noncovered Loans [Member] | Other Commercial Real Estate [Member]
Nonaccrual loans and leases	1,217	777
Loans and leases > 90 days and accruing	0	80
Noncovered Loans [Member] | Residential Mortgage [Member]
Nonaccrual loans and leases	11,949	13,062
Loans and leases > 90 days and accruing	6,604	6,640
Noncovered Loans [Member] | Revolving Mortgage [Member]
Nonaccrual loans and leases	0	0
Loans and leases > 90 days and accruing	6,066	2,301
Noncovered Loans [Member] | Commercial And Industrial [Member]
Nonaccrual loans and leases	1,792	3,320
Loans and leases > 90 days and accruing	380	1,850
Noncovered Loans [Member] | Consumer [Member]
Nonaccrual loans and leases	0	0
Loans and leases > 90 days and accruing	1,498	1,795
Noncovered Loans [Member] | Lease Financing [Member]
Nonaccrual loans and leases	83	806
Loans and leases > 90 days and accruing	$ 17	$ 298