XML 68 R58.htm IDEA: XBRL DOCUMENT v3.5.0.2
Intangible Assets (Textual) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2016
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]        
Goodwill and identifiable intangible assets acquired $ 500 $ 0 $ 116,478  
Goodwill   286,867 285,512 $ 287,393
Intangible Assets (Textual) [Abstract]        
Impairment valuation allowance   (400)    
Core deposit intangible assets [Member]        
Intangible Assets (Textual) [Abstract]        
Impairment valuation allowance   0    
Estimated Future Amortization Expense, Fiscal Year Maturity [Abstract]        
2016   2,100    
2017   3,800    
2018   3,600    
2019   3,400    
2020   2,900    
2021 and thereafter   8,600    
Mortgage Servicing Rights [Member]        
Intangible Assets (Textual) [Abstract]        
Impairment valuation allowance   $ (412) $ 0 $ 0