Exit Activity Costs And Asset Impairments (Schedule Of Reconciled Liability For Exit Activity Costs Relating To Facility Consolidation Efforts) (Details) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Exit Activity Costs And Asset Impairments
Accrued costs as of January 1	$ 2,069	$ 1,781
Exit activity costs recognized	1,460	111
Cash payments	(1,100)	(558)
Accrued costs as of June30	$ 2,429	$ 1,334