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Fair Value of Financial Instruments and Non-Financial Assets and Liabilities - Additional Information (Details) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 18, 2012 USD ($) | Jun. 30, 2019 USD ($) | Jun. 24, 2018 USD ($) | Jun. 25, 2017 USD ($) | Jun. 01, 2017 USD ($) | Feb. 24, 2017 USD ($) | Jan. 05, 2017 USD ($) | Dec. 31, 2013 USD ($)
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 |  |  |  |  |  |
Dilion [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Business combination, contingent consideration liability |  |  |  |  |  |  |  | $ 2,500,000
Swap A [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, inception date |  | Jan. 05, 2017 |  |  |  |  |  |
Swap A [Member] | Designated Hedges [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  |  |  | $ 20,000,000 |
Swap B [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, inception date |  | Feb. 24, 2017 |  |  |  |  |  |
Swap B [Member] | Designated Hedges [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  |  | $ 30,000,000 |  |
Swap C [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, inception date |  | Jun. 01, 2017 |  |  |  |  |  |
Swap C [Member] | Designated Hedges [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount |  |  |  |  | $ 25,000,000 |  |  |
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 |  | $ (320,000) | $ 319,000 | 42,000 |  |  |  |
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% |  |  |  |  |  |
Swap D [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Maximum length of time hedged in interest rate cash flow hedge | 5 years |  |  |  |  |  |  |
Derivative, fixed interest rate |  | 1.06% |  |  |  |  |  |
Swap D [Member] | Designated Hedges [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Derivative, notional amount | $ 50,000,000 |  |  |  |  |  |  |
Derivative, inception date |  | May 18, 2012 |  |  |  |  |  |
Derivative, termination date |  | May 24, 2017 |  |  |  |  |  |
Swap D [Member] | Non-designated Hedges [Member] |  |  |  |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |
Increase (decrease) in interest expense |  |  |  | $ 178,000 |  |  |  |
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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