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Third-Party Production Prepayments - Schedule of Expected Shortfall Fees to be Incurred (Detail) $ in Millions | Dec. 25, 2021 USD ($)
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Contractual Obligation, Fiscal Year Maturity [Abstract] |
2022 | $ 6
2023 | 15
2024 | 11
2025 | 6
Total shortfall fees expected to be incurred | $ 38

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- Definition Shortfall fees expected to be incurred. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Shortfall fees expected to be incurred in fourth year. + References No definition available. + Details
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Namespace Prefix: | sam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Shortfall fees expected to be incurred in second year. + References No definition available. + Details
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Namespace Prefix: | sam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Shortfall fees expected to be incurred in third year. + References No definition available. + Details
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Namespace Prefix: | sam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Shortfall fees expected to be incurred next twelve months. + References No definition available. + Details
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Namespace Prefix: | sam_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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