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Loans and Leases (Changes In Carrying Amount Of Accretable Yield) (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 01, 2016
Dec. 31, 2015
Dec. 31, 2014
Loans and Leases Receivable Disclosure [Abstract]          
Contractually required payments     $ 296,529    
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield $ 351,506 $ 341,939   $ 343,856 $ 418,160
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Additions 12,488 53,192      
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Accretion (59,066) (91,642)      
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Reclassifications from Nonaccretable Difference 25,595 15,687      
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield, Changes in Expected Cash Flows Not Affecting Nonaccretable Difference $ 28,633 $ (53,458)      
Changes in Amount of Accretable Yield [Roll Forward]          
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Cash Flows Expected to be Collected at Acquisition     2,678    
Fair value of loans acquired     $ 241,392