Derivative Instruments And Risk Management (Fair Value Of Derivative Instruments) (Details) (USD $) In Millions	3 Months Ended	6 Months Ended
Jul. 01, 2011	Jul. 02, 2010	Jul. 01, 2011	Jul. 02, 2010	Dec. 31, 2010
Diesel Fuel Contracts [Member] \| Derivatives Designated as Hedging Instruments [Member] \| Other Current Assets [Member]
Notional Amount	$ 0.5		$ 0.5
Asset Derivatives, Fair Value	0.3		0.3		0.6
Diesel Fuel Contracts [Member] \| Derivatives Designated as Hedging Instruments [Member] \| Other Comprehensive Income (Loss) [Member]
Amount of Gains (Loss) Recognized in OCI from Derivatives	(0.6)	(0.7)	(0.2)	(0.7)
Diesel Fuel Contracts [Member] \| Derivatives not Designated as Hedging Instruments [Member] \| Cost of Sales [Member]
Amount of Gain (Loss) Recognized in Income	0	(0.3)	0	(0.5)
Equity Derivatives [Member] \| Derivatives not Designated as Hedging Instruments [Member] \| Other Current Assets [Member]
Notional Amount	15.8		15.8
Asset Derivatives, Fair Value	1.7		1.7		0.3
Equity Derivatives [Member] \| Derivatives not Designated as Hedging Instruments [Member] \| Selling, General and Administrative Expenses [Member]
Amount of Gain (Loss) Recognized in Income	0.3	(1.1)	2.3	0.2
Foreign Exchange Contracts [Member] \| Derivatives Designated as Hedging Instruments [Member] \| Accounts Payable and Accrued Expenses [Member]
Notional Amount	37.9		37.9
Liability Derivatives, Fair Value	1.7		1.7		1.0
Foreign Exchange Contracts [Member] \| Derivatives Designated as Hedging Instruments [Member] \| Other Comprehensive Income (Loss) [Member]
Amount of Gains (Loss) Recognized in OCI from Derivatives	0.2	0.7	(0.4)	0.6
Foreign Exchange Contracts [Member] \| Derivatives not Designated as Hedging Instruments [Member] \| Accounts Payable and Accrued Expenses [Member]
Notional Amount	1.6		1.6
Liability Derivatives, Fair Value	0.1		0.1		0.1
Foreign Exchange Contracts [Member] \| Derivatives not Designated as Hedging Instruments [Member] \| Selling, General and Administrative Expenses [Member]
Amount of Gain (Loss) Recognized in Income	(0.2)	0	0.9	0
Interest Rate Collars and Swaps [Member] \| Derivatives Designated as Hedging Instruments [Member] \| Other Comprehensive Income (Loss) [Member]
Amount of Gains (Loss) Recognized in OCI from Derivatives	0	0.7	0	0.3
Derivatives Designated as Hedging Instruments [Member]
Asset Derivatives, Fair Value	0.3		0.3		0.6
Liability Derivatives, Fair Value	1.7		1.7		1.0
Amount of Gains (Loss) Recognized in OCI from Derivatives	(0.4)	0.7	(0.6)	0.2
Derivatives not Designated as Hedging Instruments [Member]
Asset Derivatives, Fair Value	1.7		1.7		0.3
Liability Derivatives, Fair Value	0.1		0.1		0.1
Amount of Gain (Loss) Recognized in Income	$ 0.1	$ (1.4)	$ 3.2	$ (0.3)

Fair value as of the balance sheet date of the gross assets less the gross liabilities of a derivative asset or group of derivative assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6947722&loc=d3e13495-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 4: 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=6947722&loc=d3e13433-108611

+ Details

Name:	us-gaap_DerivativeAssetFairValueNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 205G
-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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44C
-Subparagraph b
-Clause 2
-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.

+ Details

Name:	us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value as of the balance sheet date of the gross assets less the gross liabilities of a derivative liability or group of derivative liabilities.

+ References

+ Details

Name:	us-gaap_DerivativeLiabilityFairValueNet
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The increase (decrease) during the period, which was recognized in earnings, in the unrealized gains or losses on derivative instruments that are not or are no longer designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 18
-Subparagraph a, 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.

Reference 2: 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=6935481&loc=SL5624171-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 20
-Section 35
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6439004&loc=d3e65527-113976

+ Details

Name:	us-gaap_IncreaseDecreaseInFairValueOfUnhedgedDerivativeInstruments
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Aggregate notional amount of all derivatives. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

+ Details

Name:	us-gaap_NotionalAmountOfDerivatives
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant