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Accumulated Other Comprehensive Loss - Reclassifications Out of AOCL (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 24, 2020	Dec. 26, 2019	Dec. 24, 2020	Dec. 26, 2019
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrecognized prior service cost	[1]	$ (119)	$ (240)	$ (239)	$ (479)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrecognized net loss	[1]	(295)	(104)	(591)	(208)
Amortization of Defined Benefit Pension Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	[1]	(414)	(344)	(830)	(687)
Tax effect	[1]	103	86	207	172
Amortization of defined pension items, net of tax	[1]	$ (311)	$ (258)	$ (623)	$ (515)
[1] Amounts in parenthesis indicate debits to expense. See Note 9 – “Retirement Plan” above for additional details.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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