Re-engineering Costs (Details) (USD $) In Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 01, 2011	Sep. 25, 2010	Oct. 01, 2011	Sep. 25, 2010	Dec. 25, 2010
Restructuring Cost and Reserve [Line Items]
Inventory Write-down			$ 10.8	$ 16.0
Re-engineering and impairment charges	2.2	0.4	4.7	4.0
Restructuring Reserve [Roll Forward]
Beginning of the year balance			2.4	1.5	1.5
Provision			4.7		7.6
Cash expenditures:
Non-cash asset impairments			0		0.1
End of period balance	2.0		2.0		2.4
Nutrimetics Malaysia [Member]
Restructuring Cost and Reserve [Line Items]
Inventory Write-down			1.2
Severance Costs [Member]
Cash expenditures:
Severance			4.2		5.5
Other Restructuring Costs [Member]
Cash expenditures:
Other			$ 0.9		$ 1.1