Plants Shutdowns, Asset Impairments, Restructurings And Other (Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	$ 197
Charges	3,099
Cash spent	(1,945)
Charged against assets	(834)
Reversed to income	(46)
Balance at September 30, 2012	471
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	197
Charges	1,433
Cash spent	(1,113)
Reversed to income	(46)
Balance at September 30, 2012	471
Long-Lived Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Charges	834
Charged against assets	(834)
Other [Member]
Restructuring Cost and Reserve [Line Items]
Charges	832
Cash spent	$ (832)

Plants Shutdowns, Asset Impairments, Restructurings And Other (Schedule Of Accrued Expenses Associated With Asset Impairments And Exit And Disposal Activities) (Details) (USD $)
In Thousands, unless otherwise specified

9 Months Ended

Sep. 30, 2012

Restructuring Cost and Reserve [Line Items]

Balance at December 31, 2011

$ 197

Charges

3,099

Cash spent

(1,945)

Charged against assets

(834)

Reversed to income