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Commitments and Contingencies - Additional Information (Detail)	Aug. 12, 2022	Jul. 09, 2021
Commitments And Contingencies Disclosure [Abstract]
Multiemployer plan number of years relief from risk of insolvency		30 years
Time period for submission review the application	120 days

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- Definition

Multiemployer plan number of years relief from risk of insolvency.

+ References

No definition available.

+ Details

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X

- Definition

Time period for submission review the application

+ References

No definition available.

+ Details

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Namespace Prefix:	sptn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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