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) (Non-PCI Loans, USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	$ 66,046	$ 44,005
Loans and leases greater than 90 days and accruing	3,089	11,250
Commercial | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	1,497	343
Loans and leases greater than 90 days and accruing	202	111
Commercial | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	26,058	24,720
Loans and leases greater than 90 days and accruing	764	1,003
Commercial | Other commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	650	619
Loans and leases greater than 90 days and accruing	0	35
Commercial | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	5,691	1,741
Loans and leases greater than 90 days and accruing	294	239
Commercial | Lease financing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	346	374
Loans and leases greater than 90 days and accruing	0	2
Noncommerical | Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	19,238	14,242
Loans and leases greater than 90 days and accruing	1,153	3,191
Noncommerical | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	2,052	1,966
Loans and leases greater than 90 days and accruing	31	0
Noncommerical | Construction and land development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	0	0
Loans and leases greater than 90 days and accruing	0	147
Noncommerical | Revolving mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	9,837	0
Loans and leases greater than 90 days and accruing	19	5,463
Noncommerical | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccruing	677	0
Loans and leases greater than 90 days and accruing	$ 626	$ 1,059