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Retirement Plan - Schedule of Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 24, 2021	Jun. 25, 2020	Jun. 27, 2019
Retirement Benefits [Abstract]
Service cost	$ 944	$ 712	$ 610
Interest cost	858	892	895
Recognized loss amortization	1,183	417	95
Prior service cost amortization	478	957	957
Net periodic pension cost	$ 3,463	$ 2,978	$ 2,557

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