Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Retirement Benefits [Abstract]
Service cost	$ 325	$ 333
Interest cost	475	325
Expected return on plan assets	(861)	(492)
Amortization of net loss	288	271
Total	$ 227	$ 437