Disposal of Long-Lived Assets (Details) (USD $)	3 Months Ended	9 Months Ended
	Sep. 28, 2013	Sep. 28, 2013
Sale of Property [Abstract]
Total sale price of property		$ 66,200,000
Cash proceeds from the sales of property	61,200,000	61,200,000
Amount receivable due to sale of property		5,000,000
Pre-tax gain from sale of property	39,800,000
Amount of pre-diluted share after tax	0.81
Extended supply agreement term		5 years
Net book value of assets disposed	15,900,000	15,900,000
Goodwill allocated to disposal group.	10,500,000	10,500,000
Impairment charge recognized on fair value of disposed assets.	$ 3,200,000