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Employee Benefit Plans (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Bank owned life insurance [Line Items]    
Cash surrender value of bank-owned life insurance $ 28,298 $ 27,314
Bank owned life insurance death benefits 67,100  
Insured executive officers with deferred compensation plans    
Bank owned life insurance [Line Items]    
Cash surrender value of bank-owned life insurance 2,200 2,100
Bank owned life insurance death benefits 5,800 5,700
Other insured individuals    
Bank owned life insurance [Line Items]    
Cash surrender value of bank-owned life insurance $ 26,100 $ 25,200