Employee Benefit Plans (Schedule of Amounts in Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax	$ 12,641	$ 11,375
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Prior Service Cost (Credit), after Tax	20	28
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Transition Assets (Obligations), after Tax	0	(11)
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax, Total	12,661	11,392
SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Gains (Losses), after Tax	306	217
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Prior Service Cost (Credit), after Tax	4	16
Defined Benefit Plan, Accumulated Other Comprehensive Income Net Transition Assets (Obligations), after Tax	0	0
Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), after Tax, Total	$ 310	$ 233