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	6 Months Ended
Jun. 30, 2012
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	$ 197
Charges	2,261
Cash spent	(806)
Charged against assets	(834)
Reversed to income	(46)
Balance at June 30, 2012	772
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Balance at December 31, 2011	197
Charges	1,296
Cash spent	(675)
Reversed to income	(46)
Balance at June 30, 2012	772
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	131
Cash spent	$ (131)

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

6 Months Ended

Jun. 30, 2012

Restructuring Cost and Reserve [Line Items]

Balance at December 31, 2011

$ 197

Charges

2,261

Cash spent

(806)

Charged against assets

(834)

Reversed to income