Significant Accounting Policies (Details)	3 Months Ended
	Sep. 27, 2015	Mar. 27, 2016	Mar. 29, 2015
FloMet
Non-Controlling Interest
Third party ownership percentage		3.80%	3.80%
TeknaSeal
Non-Controlling Interest
Purchase of outstanding non-controlling interest (as a percent)	1.90%
Third party ownership percentage		4.40%	6.20%