XML 66 R96.htm IDEA: XBRL DOCUMENT v2.4.1.9
Stock-Based Compensation - Additional Information (Detail) (USD $)
9 Months Ended 12 Months Ended 0 Months Ended
Dec. 28, 2013
Jan. 03, 2015
OptionPlan
Mar. 30, 2013
Dec. 17, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of approved stock incentive plans   2sptn_NumberOfApprovedStockIncentivePlans    
Maximum Contractual term 4 years 4 days 3 years 3 months 18 days 4 years 6 months 26 days  
Shares available for Grant under the Plan   2,900,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant    
Shares unissued   56,225us-gaap_CommonStockCapitalSharesReservedForFutureIssuance    
Cash received from option exercises $ 300,000us-gaap_ProceedsFromStockOptionsExercised $ 1,100,000us-gaap_ProceedsFromStockOptionsExercised $ 200,000us-gaap_ProceedsFromStockOptionsExercised  
Fair value of share vested 3,600,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 4,700,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 3,900,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1  
Tax deductions related to the exercise of stock option and vesting of restricted stock 2,640,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense 2,632,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense 1,572,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense  
Stock purchase plan   300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized    
Granted additional shares of common stock, percentage   30.00%sptn_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantedCommonStockPercentage    
Share based payment share restriction period   12 months    
Purchase price of common stock   95.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent    
Stock option issued   43,469us-gaap_CommonStockSharesIssued    
Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum Contractual term   10 years    
Stock options vesting percentage per year   25.00%sptn_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPercentagePerYear
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
   
Stock option award period   4 years    
Stock options granted 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Tax deductions related to the exercise of stock option and vesting of restricted stock 4,100,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
5,900,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
4,300,000us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
/ us-gaap_AwardTypeAxis
= us-gaap_EmployeeStockOptionMember
 
Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option award period   4 years    
Stock incentive plan, period   5 years    
Award granted condition   Awards granted to employees prior to fiscal 2012 vest ratably over a five-year service period.    
Incremental expense recognized       4,200,000sptn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalExpenseRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
Unrecognized compensation cost   $ 4,600,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
   
Unrecognized compensation cost, weighted average period of recognition   2 years 3 months 18 days    
Restricted Stock Awards [Member] | Board of Directors Chairman [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock option award period   1 year    
2005 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum Contractual term   10 years    
Shares unissued   449,418us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= sptn_TwoThousandFivePlanMember
   
2009 Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares unissued   483,271us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_PlanNameAxis
= sptn_TwoThousandNinePlanMember
   
Associate Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock purchase plan   200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= sptn_AssociateStockPurchasePlanMember