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Restructuring and Asset Impairments - Schedule of Activity of Restructuring Costs (Detail) (USD $)
In Thousands, unless otherwise specified
4 Months Ended
Apr. 25, 2015
Apr. 19, 2014
Restructuring Cost And Reserve [Line Items]    
Beginning balance $ 14,068us-gaap_RestructuringReserve  
Provision for severance 304us-gaap_SeveranceCosts1 196us-gaap_SeveranceCosts1
Changes in estimates (287)us-gaap_RestructuringReservePeriodIncreaseDecrease  
Lease termination adjustment (1,745)us-gaap_RestructuringReserveAccrualAdjustment  
Accretion expense 175us-gaap_RestructuringReserveTranslationAndOtherAdjustment  
Payments (2,806)us-gaap_PaymentsForRestructuring  
Ending balance 16,469us-gaap_RestructuringReserve  
Business Restructuring Reserves [Member]    
Restructuring Cost And Reserve [Line Items]    
Provision for lease and related ancillary costs, net of sublease income 6,760us-gaap_ProvisionForLeaseLosses
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_BusinessRestructuringReservesMember
 
Lease and Ancillary Costs [Member]    
Restructuring Cost And Reserve [Line Items]    
Beginning balance 13,988us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Changes in estimates (287)us-gaap_RestructuringReservePeriodIncreaseDecrease
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Lease termination adjustment (1,745)us-gaap_RestructuringReserveAccrualAdjustment
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Accretion expense 175us-gaap_RestructuringReserveTranslationAndOtherAdjustment
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Payments (2,522)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Ending balance 16,369us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
 
Lease and Ancillary Costs [Member] | Business Restructuring Reserves [Member]    
Restructuring Cost And Reserve [Line Items]    
Provision for lease and related ancillary costs, net of sublease income 6,760us-gaap_ProvisionForLeaseLosses
/ us-gaap_RestructuringCostAndReserveAxis
= sptn_LeaseAndAncillaryCostsMember
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_BusinessRestructuringReservesMember
 
Severance [Member]    
Restructuring Cost And Reserve [Line Items]    
Beginning balance 80us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
 
Provision for severance 304us-gaap_SeveranceCosts1
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
 
Payments (284)us-gaap_PaymentsForRestructuring
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
 
Ending balance $ 100us-gaap_RestructuringReserve
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember