Merger Transaction (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 27, 2016	Mar. 29, 2015	Mar. 01, 2016
Business Acquisition [Line Items]
Merger termination fee	$ 13,000
Merger transaction costs	$ 6,017	$ 0
CCL Industries
Business Acquisition [Line Items]
Merger acquisition share price conversion (in dollars per share)			$ 10.15