Discontinued Operations Gain on Disposal of Discontinued Operation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 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	27,526
(Loss) gain on disposal of discontinued operations, net of income taxes	$ 0	$ (322)	$ 0	14,817
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
Net working capital				(5,655)
Net assets sold				(30,664)
Goodwill allocated to the sale of the Bakery				(12,067)
Other				(2,684)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Post Closing Adjustments, before Income Tax				27,338
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax				188
Gain on disposal of discontinued operations before income taxes		188		27,526
Provision for income taxes		(510)		(12,709)
(Loss) gain on disposal of discontinued operations, net of income taxes		$ (322)		14,817
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)