Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 02, 2016	Jan. 02, 2016
Commitments And Contingencies [Line Items]
Purchase commitments for inventory	$ 155.3	$ 97.2
Contract Period For Walnuts	3 years
Letters of credit	$ 11.9	9.2
Financial Guarantee
Commitments And Contingencies [Line Items]
Outstanding aggregate balance on loans	$ 138.5	$ 139.3
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
Service Contract Annual Commitment with Syndicated Market Data Provider	$ 3.0
Maximum
Commitments And Contingencies [Line Items]
Advance contract period for purchase commitment of major ingredients and packaging (months)	12 months
Service Contract Annual Commitment with Syndicated Market Data Provider	$ 4.0
Diamond Foods, Inc.
Commitments And Contingencies [Line Items]
Letters of credit	$ 4.7