Discontinued Operations Gain on Disposal of Discontinued Operation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015	May 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of the Bakery			$ 0	$ 78,408
Gain on disposal of discontinued operations before income taxes			0	27,338
Gain on disposal of discontinued operations, net of income taxes	$ 0	$ 15,139	$ 0	15,139
Bakery [Member] | Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of the Bakery		78,408		78,408
Net working capital		(5,655)		(5,655)
Net assets sold		(30,664)		(30,664)
Goodwill allocated to the sale of the Bakery		(12,067)		(12,067)
Other		(2,684)		(2,684)
Gain on disposal of discontinued operations before income taxes		27,338		27,338
Provision for income taxes		(12,199)		(12,199)
Gain on disposal of discontinued operations, net of income taxes		15,139		15,139
Disposal Group, Including Discontinued Operation, Consideration					$ 78,500
Obligation for Employer Provided Health Insurance [Member] | Bakery [Member] | Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other		$ (1,993)		$ (1,993)