Contingent Liabilities (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 27, 2015 USD ($) Location	Mar. 26, 2016 USD ($) Facility project
Commitments and Contingencies Disclosure [Abstract]
Number of projects nearing completion | project		4
Number of projects in progress | project		4
Number of previously purchased locations | Location	3
Reserves related to environmental matters | $	$ 4,711	$ 3,945
Number of sites for environmental assessments		6
Number of sites completed		3
Number of sites remaining for environmental assessments		3