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Fair Value of Financial Instruments and Non-Financial Assets and Liabilities - Additional Information (Details) | 12 Months Ended
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Jun. 28, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 24, 2018 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Fair value assets and liabilities amount transfers into or out of the levels | $ 0 | $ 0 | $ 0
Non-financial assets or liabilities of fair value recurring or non-recurring basis | $ 0 |  |
LIBOR [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Derivative, average fixed interest rate | 1.90% |  |
Swaps A, B and C [Member] | Designated Hedges [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Derivative notional amount | $ 75,000,000 |  |
Increase (decrease) in interest expense | $ 270,000 | $ (320,000) | $ 319,000
Swaps A, B and C [Member] | Designated Hedges [Member] | LIBOR [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Derivative, average fixed interest rate | 1.90% |  |
Foreign Exchange Forward [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Number of foreign currency derivatives held | 0 | 0 |

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