Property, Plant and Equipment, Net - Property, Plant and Equipment Components (Details) - USD ($) $ in Thousands	Mar. 25, 2018	Jun. 25, 2017
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	$ 833,650	$ 820,420
Less: accumulated depreciation	(623,240)	(612,355)
Less: accumulated amortization – capital leases	(6,697)	(4,677)
Total PP&E	203,713	203,388
Land [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	2,938	2,931
Land Improvements [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	15,118	15,066
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	158,590	157,115
Assets under Capital Leases [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	34,568	34,568
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	590,952	579,211
Computers, Software and Office Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	19,282	19,360
Transportation Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	4,988	4,798
Construction in Progress [Member]
Property Plant And Equipment [Line Items]
Gross property, plant and equipment	$ 7,214	$ 7,371