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Distributions of Available Cash - Additional Information (Details)	12 Months Ended
	Sep. 27, 2025
Distributions Made to Members or Limited Partners [Abstract]
Distributions to its partners	45 days

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- Definition

Maximum period after end of each term partnership makes distributions to its limited partners.

+ References

No definition available.

+ Details

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

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- References

No definition available.

+ Details

Name:	us-gaap_DistributionsMadeToMembersOrLimitedPartnersAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration