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Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |  | 3 Months Ended
--- | --- | --- | ---
Mar. 30, 2014 Restaurant_concepts | Jan. 03, 2014 Minimum [Member] weeks | Jan. 03, 2014 Maximum [Member] weeks | Mar. 30, 2014 Total revenues [Member] | Mar. 30, 2014 Net income attributable to Bloomin' Brands [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |  |  |
Number of restaurant concepts in portfolio | 5 |  |  |  |
Fiscal Year End [Line Items] |  |  |  |  |
Number of weeks in fiscal year |  | 52 | 53 |  |
Reduction in length of period from the corresponding prior year period | 1 day |  |  |  |
Change in fiscal period, estimated financial impact on current reporting period |  |  |  | $ 7.5 | $ 1.5

X
- Definition Estimated financial impact in the current reporting period as compared to the prior year comparable reporting period resulting from a change in the Company's fiscal year. + References No definition available. + Details
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Namespace Prefix: | blmn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | blmn_FiscalYearEndLineItems
Namespace Prefix: | blmn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of restaurant concepts in the Company's portfolio. + References No definition available. + Details
Name: | blmn_NumberOfRestaurantConcepts
Namespace Prefix: | blmn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of weeks in a fiscal year. + References No definition available. + Details
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Namespace Prefix: | blmn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition The reduction in the length of the period (in days) from the corresponding prior year period. + References No definition available. + Details
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Namespace Prefix: | blmn_
Data Type: | xbrli:durationItemType
Balance Type: | na
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- Details
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