Employee Benefit Plans (One Percent Change In Assumed Health Care Cost Trend Rates) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Employee Benefit Plans [Abstract]
One percent increase in change in total service and interest cost components for the year ended December 31, 2015	$ 25
One percent decrease in change in total service and interest cost components for the year ended December 31, 2015	(23)
One percent increase change in postretirement benefit obligation as of December 31, 2015	1,278
One percent decrease change in postretirement benefit obligation as of December 31, 2015	$ (1,066)