Restructuring and Related Activities (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Belguim [Member]	Apr. 03, 2012 Belguim [Member]
Long-Lived Assets [Line Items]
Gain on Sale of Property	$ 0	$ 0	$ (12,153)	$ 0	$ 0	$ 0	$ 0	$ 0	$ (12,153)	$ 0	$ 0	$ 12,153
Proceeds from sale of long lived assets held for sale													3,406
Period of collection of proceeds from the sale of land													3 years
Sale price of long lived assets held for sale													$ 14,200