v3.26.3
Derivative Instruments and Hedging Activities (Fair Value and Classification of Interest Rate Swaps) (Details) - Interest rate swaps - Designated as hedging instrument - USD ($)
$ in Thousands
Sep. 27, 2026
Dec. 28, 2025
Derivative [Line Items]    
Fair value of derivative instruments - assets [1] $ 3,480 $ 208
Fair value of derivative instruments - liabilities [1] 0 417
Balance sheet location [Axis]: us-gaap:OtherAssetsCurrent    
Derivative [Line Items]    
Fair value of derivative instruments - assets [1] 2,445 208
Balance sheet location [Axis]: us-gaap:OtherAssetsNoncurrent    
Derivative [Line Items]    
Fair value of derivative instruments - assets [1] 1,035 0
Balance sheet location [Axis]: us-gaap:OtherLiabilitiesNoncurrent    
Derivative [Line Items]    
Fair value of derivative instruments - liabilities 0 87
Balance sheet location [Axis]: blmn:AccruedAndOtherLiabilitiesCurrent    
Derivative [Line Items]    
Fair value of derivative instruments - liabilities $ 0 $ 330
[1] See Note 8 - Stockholders’ Equity for interest rate swaps impact on AOCI and Note 11 - Fair Value Measurements for fair value discussion of the interest rate swaps.