Commitments and Contingencies - Additional Information (Detail)	3 Months Ended
Jun. 22, 2013
Commitments And Contingencies Disclosure [Abstract]
Contribution by the employer to the Rehabilitation Plan	4.00%

Contribution by the employer to the rehabilitation plan.

No definition available.

Name:	sptn_ContributionByEmployerToRehabilitationPlan
Namespace Prefix:	sptn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration