Commitments and Contingencies (Insurance, Future Payments) (Details) - USD ($) $ in Thousands	Dec. 27, 2015	Dec. 28, 2014
Commitments and Contingencies Disclosure [Abstract]
2016	$ 20,909
2017	12,182
2018	8,481
2019	5,196
2020	2,861
Thereafter	14,162
Total	$ 63,791	$ 64,157

Claims payments under the self insurance reserve expected in the fifth fiscal year following the latest fiscal year.

No definition available.

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

Claims payments under the self insurance reserve expected in the fourth fiscal year following the latest fiscal year.

No definition available.

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

Claims payments under the self insurance reserve expected in the third fiscal year following the latest fiscal year.

No definition available.

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

Claims payments under the self insurance reserve expected in the second fiscal year following the latest fiscal year.

No definition available.

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

Claims payments under the self insurance reserve expected after the fifth fiscal year following the latest fiscal year.

No definition available.

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

Claims payments under the self insurance reserve expected in the next fiscal year following the latest fiscal year.

No definition available.

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

Probable amount of future payments (undiscounted) the Company may be required to make for uninsured claims.

No definition available.

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

No definition available.

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