Property, Plant and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Property, Plant and Equipment (Textual) [Abstract]
Depreciation and amortization expense	$ 15.3	$ 15.3	$ 30.8	$ 30.1