Recently Issued Accounting Standards - Additional Information (Detail)	1 Months Ended
Jul. 31, 2012
Recently Issued Accounting Standards [Abstract]
Indefinite-lived intangible asset, more likely than not, threshold likelihood percentage	50.00%

Good Will And Other Intangibles Test Of Impairment More Likelihood Percentage

No definition available.

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