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Member's Interest - Summary of Changes in Each Component of Accumulated Comprehensive Income Loss (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 27, 2014
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment $ (3,919)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax $ 4,407us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax $ (3,648)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax  
Foreign currency translation adjustment (5,816)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax      
Change In Retirement Plans [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (6,045)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
    (6,577)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
Foreign currency translation adjustment         
Ending Balance (9,730)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
  (9,130)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
(6,577)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
Change In Retirement Plans [Member] | Postretirement Liability Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment (2,743)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
3,085us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
(2,553)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
 
Change In Retirement Plans [Member] | Postretirement Curtailment Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment (942)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementCurtailmentAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= ck0001571371_ChangeInRetirementPlansMember
     
Foreign Currency Translation Adjustments [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance         
Foreign currency translation adjustment (5,816)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
     
Ending Balance (5,816)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedTranslationAdjustmentMember
      
Foreign Currency Translation Adjustments [Member] | Postretirement Liability Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment         
Foreign Currency Translation Adjustments [Member] | Postretirement Curtailment Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment         
Accumulated Other Comprehensive Loss (AOCI) [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Beginning Balance (6,045)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
    (6,577)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
Foreign currency translation adjustment (5,816)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
     
Ending Balance (15,546)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
  (9,130)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
(6,577)us-gaap_AccumulatedOtherComprehensiveIncomeLossBeforeTax1
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
Accumulated Other Comprehensive Loss (AOCI) [Member] | Postretirement Liability Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment (2,743)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
3,085us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
(2,553)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementLiabilityAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember
 
Accumulated Other Comprehensive Loss (AOCI) [Member] | Postretirement Curtailment Adjustment [Member]        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Postretirement adjustment $ (942)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
/ us-gaap_RegulatoryAssetAxis
= ck0001571371_PostretirementCurtailmentAdjustmentMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_AccumulatedOtherComprehensiveIncomeMember