Property, Plant and Equipment, Net - Property, Plant and Equipment Components (Details) - USD ($) $ in Thousands	Mar. 27, 2022	Jun. 27, 2021
Property Plant And Equipment [Line Items]
Gross PP&E	$ 887,667	$ 864,235
Less: accumulated depreciation	(665,100)	(656,576)
Less: accumulated amortization – finance leases	(7,489)	(5,963)
Total PP&E, net	215,078	201,696
Land [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	3,200	3,184
Land Improvements [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	16,443	16,372
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	161,557	160,122
Assets under Finance Leases [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	22,882	22,000
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	622,758	609,414
Computers, Software and Office Equipment [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	25,717	24,848
Transportation Equipment [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	10,542	10,461
Construction in Progress [Member]
Property Plant And Equipment [Line Items]
Gross PP&E	$ 24,568	$ 17,834

Less: accumulated amortization – finance leases.

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