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Allowance for Loan and Lease Losses (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]          
Loans And Leases Receivable Allowance, Covered $ 11,000,000   $ 11,000,000   $ 22,600,000
Provision (recapture) for Loan Losses, Covered $ 237,000 $ (105,000) 184,000 $ 4,700,000  
Allowance de-recognition due to change in policy from most recent acquisition     8,500,000    
Allowance de-recognition due to change in policy from loans acquired acquisition     $ 72,200,000