Exit Activity Costs And Asset Impairments (Schedule Of Reconciled Liability For Exit Activity Costs Relating To Facility Consolidation Efforts) (Details) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Exit Activity Costs And Asset Impairments [Abstract]
Balance as of December 31	$ 2,069	$ 1,781
Exit activity costs recognized	1,725	226
Cash payments	(1,896)	(1,059)
Balance as of September 30	$ 1,898	$ 948