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		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Provision for income taxes	$ (19,125)	$ (14,278)	$ (44,868)	$ (25,572)
NET INCOME	28,801	$ 19,677	65,561	$ 36,580
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Defined benefit pension plan adjustments	427		1,280
Provision for income taxes	(179)		(461)
NET INCOME	$ 248		$ 819