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Employee Benefit Plans (Bank Owned Life Insurance) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Bank owned life insurance [Line Items]    
Bank-owned life insurance $ 42,761 $ 41,538
Bank owned life insurance death benefits 97,900 97,800
Insured executive officers with deferred compensation plans    
Bank owned life insurance [Line Items]    
Bank-owned life insurance 2,600 2,500
Bank owned life insurance death benefits 6,000 5,900
Other insured individuals    
Bank owned life insurance [Line Items]    
Bank-owned life insurance $ 40,200 $ 39,000