Restructuring Activity (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 739		$ 2,982
Employee Termination and Related Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		1,398
Moving Costs Associated with Plant Consolidations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	739		859
Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		42
Inventory Writedowns [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0		683
Restructuring Plan 1 [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Plants Consolidated in Restructuring	5
Restructuring Plan 2 [Member]
Restructuring Cost and Reserve [Line Items]
Number Of Plants Consolidated in Restructuring	1
Restructuring Charges	739	[1]
Restructuring Plan 2 [Member] | Employee Termination and Related Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	[1]
Restructuring Plan 2 [Member] | Moving Costs Associated with Plant Consolidations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 739	[1]

[1] Costs associated with moving and plant consolidations and employee termination and related benefits are recorded to the restructuring charges line item within the condensed consolidated statements of operations and comprehensive loss as they are incurred.