Business Segment Information - Geographic Information for Net Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 24, 2018
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	$ 606,509	$ 708,804	$ 678,912
U.S. [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	342,350	426,725	420,920
BRAZIL [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	73,339	102,877	110,587
CHINA
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	148,923	125,667	90,998
All Other Foreign Countries [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	41,897	53,535	56,407
Export Sales from US Operations [Member] | U.S. [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Geographic net sales	$ 64,305	$ 84,707	$ 94,205