Derivative and Hedging Activities (Details) (USD $) In Millions, unless otherwise specified			3 Months Ended
Mar. 28, 2013	Mar. 29, 2012	Mar. 28, 2013 Interest Swap Agreements Four [Member]	Mar. 28, 2013 Interest Swap Agreements Five [Member]
Interest Rate Swaps
Notional Amount	$ 275.0	$ 325.0	$ 50.0	$ 225.0
Derivative Maturity Period			June 2013	July 2014
Variable Rate			1 Month LIBOR	1 Month LIBOR
Fixed Rate			0.84%	1.37%
Fair Value	$ (3.2)		$ (0.1)	$ (3.1)

Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 107

-Paragraph 10

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant