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Fair Value of Financial Instruments - Carrying Value and Fair Value Estimate of Current and Long-Term Debt (Detail) - USD ($)
$ in Thousands
Dec. 24, 2020
Jun. 25, 2020
Dec. 26, 2019
Fair Value Disclosures [Abstract]      
Carrying value of long-term debt: $ 16,627 $ 20,059 $ 23,767
Fair value of long-term debt: $ 17,180 $ 20,186 $ 24,164