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Stock-based and Deferred Compensation Plans (Other Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 31, 2013
401(k) plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Defined contribution plan, employer contribution amount	$ 3.7	$ 1.1	$ 2.1

X

- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PlanNameAxis=blmn_A401kPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: