Derivative Instruments (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Oct. 02, 2011
Derivative Instruments (Additional Textual) [Abstract]
Expected reclassification of gain over the next 12 months	$ 0.9		$ 0.9
Designated as Hedging Instrument [Member]
Derivative Instruments (Textual) [Abstract]
Amount of foreign currency contract designated as cash flow hedges	55.9		55.9
Not Designated as Hedging Instrument [Member]
Derivative Instruments (Textual) [Abstract]
Effect of derivative instruments not designated as cash flow hedges recognized in other income and expense	(0.6)	0.7	(0.4)	0.9
Not Designated as Hedging Instrument [Member] | Buy Canadian dollars and to sell U.S. dollars [Member]
Derivative Instruments (Textual) [Abstract]
Amount of foreign currency contract	25.6		25.6
Not Designated as Hedging Instrument [Member] | Buy British pounds and sell U.S. dollars [Member]
Derivative Instruments (Textual) [Abstract]
Amount of foreign currency contract	2.6		2.6
Not Designated as Hedging Instrument [Member] | Sell euros and Buy U.S. dollars [Member]
Derivative Instruments (Textual) [Abstract]
Amount of foreign currency contract	6.2		6.2
Not Designated as Hedging Instrument [Member] | Sell Japanese yen and buy U.S. dollars [Member]
Derivative Instruments (Textual) [Abstract]
Amount of foreign currency contract	$ 2.8		$ 2.8