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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Thousands | Oct. 19, 2020 | Sep. 26, 2020 | Jun. 27, 2020 | Dec. 28, 2019
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Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Prepaid brewing service fees current |  | $ 22,214 |  | $ 12,077
Prepaid Expense, Current |  | 30,200 |  |
Payments for Capital Improvements |  | 9,600 |  |
Commitments [Member] |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Estimated volume commitments contractual shortfall fees |  | 60,900 |  |
Commitments [Member] | Subsequent Event [Member] |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Estimated volume commitments contractual shortfall fees | $ 10,300 |  |  |
Prepaid Brewing Fees |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Prepaid brewing service fees current |  | 9,000 |  |
Prepaid brewing service fees |  | $ 39,200 |  |
Minimum |  |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |  |
Company's current brewing and packaging percentage |  |  | 65.00% |

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