Restructuring, Reorganization, Relocation and Severance (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended												3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011 Product Line Transfer [Member]	Dec. 31, 2012 Employee Severance [Member]	Dec. 31, 2011 Employee Severance [Member]	Dec. 31, 2011 Manufacturing transfer and shift of supply chain [Member]	Dec. 31, 2011 IT System Upgrade [Member]	Dec. 31, 2011 Abandoned Leases and Facilities [Member]	Dec. 31, 2012 Manufacturing Transfer [Member]	Dec. 31, 2013 Group Structure Reorganization [Member]	Dec. 31, 2012 Group Structure Reorganization [Member]	Dec. 31, 2012 Group Structure Reorganization [Member]	Dec. 31, 2013 Group Structure Reorganization [Member]	Dec. 31, 2013 Manufacturing Transfer Plan [Member] Manufacturing Transfer [Member]	Dec. 31, 2012 Manufacturing Transfer Plan [Member] Manufacturing Transfer [Member]	Dec. 31, 2013 April 2010 Restructuring Plan [Member]	Dec. 31, 2012 April 2010 Restructuring Plan [Member]	Dec. 31, 2011 April 2010 Restructuring Plan [Member]	Dec. 31, 2013 April 2010 Restructuring Plan [Member] Product Line Transfer [Member]	Dec. 31, 2012 April 2010 Restructuring Plan [Member] Product Line Transfer [Member]	Dec. 31, 2011 April 2010 Restructuring Plan [Member] Product Line Transfer [Member]	Dec. 31, 2013 April 2010 Restructuring Plan [Member] Employee Severance [Member]	Dec. 31, 2012 April 2010 Restructuring Plan [Member] Employee Severance [Member]	Dec. 31, 2011 April 2010 Restructuring Plan [Member] Employee Severance [Member]	Dec. 31, 2013 Sales [Member] Largest contract manufacturer [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ 1,090	$ 2,859	$ 3,215	$ 963	$ 0	$ 184	$ 2,100	$ 0	$ (32)	$ 0	$ 1,090	$ 2,859	$ 2,900	$ 1,100	$ 0	$ 0	$ 0	$ 0	$ 1,147	$ 0	$ 0	$ 963	$ 0	$ 0	$ 184
Expected additional cost of restructuring plan														0
Cost incurred - life of plan																	8,452			1,835			6,617
Restructuring Reserve [Roll Forward]
Beginning accrued liability	2,692	2,213	4,884	0	113	4,832	0	20	32	2,100	2,692	0
Charged to expense, net	1,090	2,859	3,215	963	0	184	2,100	0	(32)	0	1,090	2,859	2,900	1,100	0	0	0	0	1,147	0	0	963	0	0	184
Expenditures	(3,782)	(2,354)	(6,046)	(963)	0	(5,083)	0	0	0	(2,100)	(3,782)	(254)
Write-offs and adjustments	50	(26)	160	0	(113)	180	0	(20)	0	0	50	87
Ending accrued liability	$ 50	$ 2,692	$ 2,213	$ 0	$ 0	$ 113	$ 2,100	$ 0	$ 0	$ 0	$ 50	$ 2,692
Concentration Risk, Percentage																										10.00%