[Line Items] for Revenue Recognition [Table]

No definition available.

Name:	blmn_RevenueRecognitionLineItems
Namespace Prefix:	blmn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 40
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054

+ Details

Name:	us-gaap_CapitalizedContractCostNetCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredRevenueCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.

+ References

+ Details

Name:	us-gaap_DeferredRevenueNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DeferredRevenueArrangementTypeAxis=us-gaap_UpFrontPaymentArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=blmn_UnearnedRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DeferredRevenueArrangementTypeAxis=blmn_LoyaltyRevenueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DeferredRevenueArrangementTypeAxis=us-gaap_RoyaltyArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Revenue Recognition Revenue Recognition (Contract Assets and Liabilities Summary) (Details) - USD ($) $ in Thousands	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017	Dec. 25, 2016
Revenue Recognition [Line Items]
Deferred gift card sales commissions, current	$ 18,554	$ 16,431	$ 16,231	$ 15,584
Unearned revenue	369,282	342,708
Deferred gift card revenue [Member]
Revenue Recognition [Line Items]
Unearned revenue	358,757	333,794	$ 323,628	$ 331,803
Other current assets, net [Member]
Revenue Recognition [Line Items]
Deferred gift card sales commissions, current	18,554	16,431
Unearned revenue [Member]
Revenue Recognition [Line Items]
Unearned revenue	369,282	342,708
Unearned revenue [Member] \| Deferred gift card revenue [Member]
Revenue Recognition [Line Items]
Unearned revenue	358,757	333,794
Unearned revenue [Member] \| Deferred loyalty revenue [Member]
Revenue Recognition [Line Items]
Unearned revenue	10,034	8,424
Unearned revenue [Member] \| Deferred franchise fees [Member]
Revenue Recognition [Line Items]
Unearned revenue	491	490
Other long-term liabilities, net [Member] \| Deferred franchise fees [Member]
Revenue Recognition [Line Items]
Deferred franchise fees, noncurrent	$ 4,599	$ 4,531