Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended		15 Months Ended
	Jan. 19, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016
Discontinued Operations [Line Items]
(Loss) gain on sale of discontinued operations before income taxes			$ 1,405	$ (4,987)
Impairment of goodwill			0	$ 9,857
Packaging Business [Member]
Discontinued Operations [Line Items]
Proceeds from sale of discontinued operations	$ 89,600
Sale of discontinued operations, transaction costs	$ 6,300
(Loss) gain on sale of discontinued operations before income taxes		$ (4,987)	$ 1,400		$ (3,600)
Impairment of goodwill		$ 9,900