Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]
Service cost	$ 320	$ 252	$ 963	$ 756
Interest cost	476	450	1,428	1,350
Expected return on plan assets	(797)	(740)	(2,366)	(2,220)
Recognized loss	361	96	1,081	288
Total	$ 360	$ 58	$ 1,106	$ 174