Period as defined under terms of the debt agreement that the borrower may extend the date of debt payments.

No definition available.

Name:	blmn_DebtInstrumentPrincipalPaymentExtensionPeriod
Namespace Prefix:	blmn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt covenant threshold that requires debt principal repayment from rent revenues until the balance is reduced below the threshold, as of a date specified date.

+ References

No definition available.

+ Details

Name:	blmn_DebtInstrumentRestrictiveCovenantsBalanceThresholdforRequiredPrincipalRepaymentfromRentRevenues
Namespace Prefix:	blmn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Aggregate amount of gains or losses related to debt extinguished or modified prior to maturity, including, as applicable: 1) difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity, 2) prepayment premiums, 3) the write-off of deferred financing fees and unamortized debt discount related to the extinguished portion of debt and/or 4) the expensed third-party financing fees related to the modified portion of debt.

+ References

No definition available.

+ Details

Name:	blmn_GainLossonExtinguishmentandModificationofDebt
Namespace Prefix:	blmn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of real estate properties securing debt.

+ References

No definition available.

+ Details

Name:	blmn_NumberOfRealEstatePropertiesSecuringDebt
Namespace Prefix:	blmn_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

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

- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentIssuanceDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cash inflow associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.

+ References

No definition available.

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=blmn_Cmbs2012LoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=blmn_PRPMortgageLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CollateralAxis=blmn_UnencumberedPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentRedemptionPeriodAxis=us-gaap_DebtInstrumentRedemptionPeriodTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Text) (Details) $ in Thousands			12 Months Ended
Subsequent Events (Text) (Details) $ in Thousands	Feb. 11, 2016 USD ($) properties	Mar. 27, 2012 USD ($)	Dec. 27, 2015 USD ($)	Dec. 28, 2014 USD ($)	Dec. 31, 2013 USD ($)
Subsequent Event [Line Items]
Loss on extinguishment and modification of debt			$ (2,956)	$ (11,092)	$ (14,586)
Decrease in restricted cash, extinguishment of CMBS loan			$ 54,782	$ 26,075	$ 29,210
2012 CMBS loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Decrease in restricted cash, extinguishment of CMBS loan	$ 19,300
Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Debt instrument, issuance date	Feb. 11, 2016
Debt instrument, face amount	$ 300,000
Debt instrument, maturity date	Feb. 11, 2018
Debt instrument, principal payment extension period	12 months
Mortgages [Member] \| 2012 CMBS loan [Member]
Subsequent Event [Line Items]
Debt instrument, face amount		$ 500,000
Debt instrument, maturity date		Apr. 10, 2017
Minimum [Member] \| Mortgages [Member] \| 2012 CMBS loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Loss on extinguishment and modification of debt	$ 26,000
Maximum [Member] \| Mortgages [Member] \| 2012 CMBS loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Loss on extinguishment and modification of debt	$ 29,000
London Interbank Offered Rate (LIBOR) [Member] \| Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Debt instrument, basis spread on variable rate	2.50%
Variable rate description	seven-day LIBOR
Collateral pledged [Member] \| Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Number of properties securing debt \| properties	148
Unencumbered properties [Member] \| Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Number of properties securing debt \| properties	98
Debt instrument, repayment period, period one [Member] \| Maximum [Member] \| Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Debt instrument, restrictive covenants, balance threshold for required principal repayment from rent revenues	$ 210,000
Debt instrument, repayment period, period two [Member] \| Maximum [Member] \| Mortgages [Member] \| PRP Mortgage Loan [Member] \| Subsequent event [Member]
Subsequent Event [Line Items]
Debt instrument, restrictive covenants, balance threshold for required principal repayment from rent revenues	$ 160,000