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Goodwill and Intangible Assets - Components of Identifiable Intangible Assets (Detail) - USD ($) $ in Thousands | Dec. 24, 2020 | Jun. 25, 2020 | Dec. 26, 2019
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Total intangible assets, gross | $ 38,360 | $ 38,360 | $ 38,360
Less accumulated amortization: |  |  |
Total accumulated amortization | (27,392) | (26,235) | (25,078)
Net intangible assets | 10,968 | 12,125 | 13,282
Customer Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total intangible assets, gross | 21,100 | 21,100 | 21,100
Less accumulated amortization: |  |  |
Total accumulated amortization | (17,008) | (16,223) | (15,438)
Brand Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total intangible assets, gross | 16,990 | 16,990 | 16,990
Less accumulated amortization: |  |  |
Total accumulated amortization | (10,217) | (9,873) | (9,527)
Non-compete Agreement [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Total intangible assets, gross | 270 | 270 | 270
Less accumulated amortization: |  |  |
Total accumulated amortization | $ (167) | $ (139) | $ (113)

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