Benefit Plans (Change In Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Benefit Plans [Abstract]
Fair value of plan assets at beginning of measurement year	$ 18,301	$ 19,677	$ 18,600
Actual return on plan assets net of expenses	1,159	(140)	2,323
Settlement loss	(1,590)
Benefits paid	(808)	(1,236)	(1,246)
Fair value of plan assets at end of measurement year	17,062	18,301	19,677
Funded status of projected benefit obligation	$ (819)	$ (308)	$ (2)