Derivative Instruments (Details 1) (USD $) In Millions, unless otherwise specified	Apr. 01, 2012	Jan. 01, 2012
Fair values of derivative financial instruments
Total liability derivatives	$ (0.2)	$ 2.5
Designated as Hedging Instrument [Member]
Fair values of derivative financial instruments
Total liability derivatives	(0.1)	2.0
Not Designated as Hedging Instrument [Member]
Fair values of derivative financial instruments
Total liability derivatives	(0.1)	0.5
Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Fair values of derivative financial instruments
Total liability derivatives	(0.1)	2.0
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Fair values of derivative financial instruments
Total liability derivatives	$ (0.1)	$ 0.5