Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended		12 Months Ended
	Jan. 19, 2016	Oct. 01, 2016	Jan. 02, 2016	Sep. 26, 2015	Oct. 01, 2016	Sep. 26, 2015	Oct. 01, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on sale of discontinued operations before income taxes		$ 1,176		$ 0	$ (97)	$ 0
Packaging Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of discontinued operations	$ 88,100
Sale of discontinued operations, transaction costs	6,300
(Loss) gain on sale of discontinued operations before income taxes		$ (1,200)	$ (5,000)		$ 100		$ (5,100)
Sale of discontinued operations, impairment			$ 9,900
Sale of discontinued operations, Holdback amount	$ 5,000