Commitments And Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Commitments And Contingencies [Line Items]
Commitments under agreements not previously accrued (change in control)	$ 8.5	$ 8.7
Commitments under agreements not previously accrued (termination without cause)	8.0	7.5
Maximum aggregate unrecognized commitment	12.7	16.2
AdditionalCompensationExpenseRelatedToChangeInControl	8.9
Rental expense	23.9	22.0	9.8
Letters of credit	18.9	16.1
Purchase commitments for inventory	202.0
Financial Guarantee [Member]
Commitments And Contingencies [Line Items]
Outstanding aggregate balance on loans	$ 109.7	$ 40.6
Percentage of outstanding loans under the guarantee	25.00%
Percentage of new loans issued	25.00%
Minimum
Commitments And Contingencies [Line Items]
Advance contract period for purchase commitment of major ingredients and packaging (months)	3 months
Maximum
Commitments And Contingencies [Line Items]
Advance contract period for purchase commitment of major ingredients and packaging (months)	12 months