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	3 Months Ended
	Mar. 31, 2014
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	$ 687
Charges	1,245
Cash spent	(231)
Charges against assets	(168)
Balance at March 31, 2014	1,533
Severance
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	331
Charges	1,077
Cash spent	(76)
Balance at March 31, 2014	1,332
Long Lived Asset Impairment [Member]
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	0
Charges	168
Cash spent	0
Charges against assets	(168)
Balance at March 31, 2014	0
Other
Restructuring Reserve [Roll Forward]
Balance at December 31, 2013	356	[1]
Charges	0	[1]
Cash spent	(155)	[1]
Balance at March 31, 2014	$ 201	[1]

[1] Other includes other shutdown-related costs associated with the shutdown of the Company's aluminum extrusions manufacturing facility in Kentland, Indiana.