Contingent Liabilities - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Sep. 27, 2014 Location	Sep. 28, 2013	Jun. 28, 2014
Commitments and Contingencies Disclosure [Abstract]
Reserves related to environmental matters	$ 1,000		$ 900
Expenses related to environmental matters	$ 205	$ 283
Locations Issued Predetermination Notice	1
Locations with alleged violations	2
Locations under audit	6