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Summary of Significant Accounting Policies (Cloud-Based Computing Arrangements) (Details) $ in Millions | Dec. 29, 2024 USD ($)
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Other current assets, net and Other assets, net |
Schedule of cloud based computing arrangements [Line Items] |
Capitalized cloud computing implementation costs | $ 4.6

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- Definition Capitalized Cloud Computing Implementation Costs + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Schedule of cloud based computing arrangements [Line Items] + References No definition available. + Details
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Namespace Prefix: | blmn_
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Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | na
Balance Type: |
Period Type: |