XML 122 R109.htm IDEA: XBRL DOCUMENT v3.19.1
Employee Benefit Plans (Schedule of Amounts in Accumulated Other Comprehensive Income) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Pension [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax $ 18,841 $ 17,883
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Prior Service Cost (Credit), after Tax 0 7
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax, Total 18,841 17,890
SERP [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax 742 860
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Prior Service Cost (Credit), after Tax (7) (8)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax, Total $ 735 $ 852