Derivative Instruments And Risk Management (Fair Value Of Derivative Instruments) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011	Oct. 01, 2010	Dec. 31, 2010
Diesel Fuel Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Current Assets [Member]
Derivative [Line Items]
Notional Amount	$ 0		$ 0
Asset Derivatives, Fair Value	0		0		0.6
Diesel Fuel Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Accounts Payable And Accrued Expenses [Member]
Derivative [Line Items]
Notional Amount	3.4		3.4
Liability Derivatives, Fair Value	0.3		0.3		0
Diesel Fuel Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Amount of Gains (Loss) Recognized in OCI from Derivatives	(0.4)	0.8	(0.6)	0
Diesel Fuel Contracts [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Cost Of Sales [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income			0	(0.6)
Equity Derivatives [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Other Current Assets [Member]
Derivative [Line Items]
Notional Amount	16.4		16.4
Asset Derivatives, Fair Value	2.2		2.2		0.4
Equity Derivatives [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Selling, General And Administrative Expenses [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income	1.5	0.4	3.9	0.6
Foreign Exchange Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Accounts Payable And Accrued Expenses [Member]
Derivative [Line Items]
Notional Amount	2.4		2.4
Liability Derivatives, Fair Value	0.1		0.1		0.9
Foreign Exchange Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Accounts Receivable [Member]
Derivative [Line Items]
Notional Amount	31.0		31.0
Asset Derivatives, Fair Value	1.3		1.3		0
Foreign Exchange Contracts [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Amount of Gains (Loss) Recognized in OCI from Derivatives	1.9	(0.3)	1.5	0.3
Foreign Exchange Contracts [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Accounts Payable And Accrued Expenses [Member]
Derivative [Line Items]
Notional Amount	0		0
Liability Derivatives, Fair Value	0		0		0.1
Foreign Exchange Contracts [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Accounts Receivable [Member]
Derivative [Line Items]
Notional Amount	1.5		1.5
Asset Derivatives, Fair Value	0.1		0.1		0
Foreign Exchange Contracts [Member] | Derivatives Not Designated As Hedging Instruments [Member] | Selling, General And Administrative Expenses [Member]
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income	0.4	(0.1)	0	(0.1)
Interest Rate Collars And Swaps [Member] | Derivatives Designated As Hedging Instruments [Member] | Other Comprehensive Income (Loss) [Member]
Derivative [Line Items]
Amount of Gains (Loss) Recognized in OCI from Derivatives	0	2.8	0	3.1
Derivatives Designated As Hedging Instruments [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	1.3		1.3		0.6
Liability Derivatives, Fair Value	0.4		0.4		0.9
Amount of Gains (Loss) Recognized in OCI from Derivatives	1.5	3.3	0.9	3.4
Derivatives Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Asset Derivatives, Fair Value	2.3		2.3		0.4
Liability Derivatives, Fair Value	0		0		0.1
Amount of Gain (Loss) Recognized in Income	$ 1.9	$ 0.3	$ 3.9	$ (0.1)