Other Comprehensive Income (Loss) (Schedule Of Items Reclassified Out Of AOCI And The Corresponding Location And Impact On The Condensed Consolidated Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	$ (14,419)	$ (8,215)	$ (25,743)	$ (11,294)
NET INCOME	21,361	$ 11,777	36,760	$ 16,903
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension plan adjustments	427		853
Provision for income taxes	(103)		(282)
NET INCOME	$ 324		$ 571