Restructuring Activity Roll Forward (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013	Sep. 30, 2014		Sep. 30, 2013
Restructuring Reserve [Roll Forward]
Beginning Restructuring Reserve				$ 1,050
Restructuring Costs (Gains)	(5,147)		885	(3,501)		9,939
Restructuring Reserve, Cash (Payments) Receipts				3,233
Ending Restructuring Reserve	782			782
Moving Costs Associated with Plant Consolidations [Member]
Restructuring Reserve [Roll Forward]
Beginning Restructuring Reserve				0
Restructuring Costs (Gains)	133		555	909		4,014
Restructuring Reserve, Cash (Payments) Receipts				(909)
Ending Restructuring Reserve	0			0
Gain on disposal of fixed assets [Member]
Restructuring Reserve [Roll Forward]
Beginning Restructuring Reserve				0
Restructuring Costs (Gains)	(5,533)		0	(5,533)		0
Restructuring Reserve, Cash (Payments) Receipts				5,533
Ending Restructuring Reserve	0			0
Employee Termination and Related Benefits [Member]
Restructuring Reserve [Roll Forward]
Beginning Restructuring Reserve				129
Restructuring Costs (Gains)	67		279	937		2,493
Restructuring Reserve, Cash (Payments) Receipts				(1,066)
Ending Restructuring Reserve	0			0
Lease Termination Costs [Member]
Restructuring Reserve [Roll Forward]
Beginning Restructuring Reserve				921
Restructuring Costs (Gains)	186		0	186		1,830
Restructuring Reserve, Cash (Payments) Receipts				(325)
Ending Restructuring Reserve	782	[1]		782	[1]
Accrued Liabilities [Member]
Restructuring Reserve [Roll Forward]
Ending Restructuring Reserve	588			588
Other Noncurrent Liabilities [Member]
Restructuring Reserve [Roll Forward]
Ending Restructuring Reserve	$ 194			$ 194

[1] Payments on certain of the lease obligations are scheduled to continue until 2017. Market conditions and the Company’s ability to sublease these properties could affect the ultimate charge related to the lease obligations. Any potential recoveries or additional charges could affect amounts reported in the consolidated financial statements of future periods. As of September 30, 2014, the short-term portion of the lease termination costs in the restructuring liability of $588 is included in accrued liabilities and the long-term portion of $194 is included in other non-current liabilities in the Consolidated Balance Sheet.