Financial Instruments (Details) (Foreign Exchange Forward, USD $) In Millions, unless otherwise specified			6 Months Ended
Jun. 29, 2012 Other current assets Fair Value, Inputs, Level 1	Dec. 30, 2011 Other current assets Fair Value, Inputs, Level 1	Jun. 29, 2012 Other (loss) income, net
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain			$ 0.1
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	$ 0.3	$ 0.6

Gain included in earnings for the period from the change in fair value of derivative instruments not designated as hedging instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGain
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration