Employee Benefit Plans (Net Periodic Pension Cost Of The Defined Benefit Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation [Abstract]
Interest cost	$ 772	$ 820	$ 813
Expected return on plan assets	(1,219)	(1,154)	(937)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	(104)	0	0
Net amortization and deferral	849	849	960
Net Periodic Pension Cost	$ 298	$ 515	$ 836