Finance Obligation, Noncurrent

No definition available.

Name:	sfm_FinanceObligationNoncurrent
Namespace Prefix:	sfm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Long-term debt and finance lease liabilities line items.

+ References

No definition available.

+ Details

Name:	sfm_LongTermDebtAndFinanceLeaseLiabilitiesLineItems
Namespace Prefix:	sfm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Long term debt and finance lease liabilities noncurrent.

+ References

No definition available.

+ Details

Name:	sfm_LongTermDebtAndFinanceObligationsNoncurrent
Namespace Prefix:	sfm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
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-Name Accounting Standards Codification
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-Publisher FASB
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
Period Type:

- Details

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Period Type:

Long-Term Debt and Other Finance Obligations - Schedule of Long-Term Debt and Other Finance Obligations (Details) - USD ($) $ in Thousands	Jun. 28, 2026	Dec. 28, 2025	Jul. 25, 2025
Long Term Debt And Finance Lease Liabilities [Line Items]
Finance Obligations	$ 99,181	$ 69,420
Finance lease liabilities	11,618	12,165
Long-term debt and other finance obligations	110,799	81,585
Senior secured debt \| Revolving Credit Facility
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility maximum borrowing capacity			$ 600,000
Senior secured debt	0
Senior secured debt \| Revolving Credit Facility \| $600.0 million Credit Agreement
Long Term Debt And Finance Lease Liabilities [Line Items]
Credit facility maximum borrowing capacity	600,000
Senior secured debt	0	0
Senior secured debt \| Revolving Credit Facility \| Former Credit Facility
Long Term Debt And Finance Lease Liabilities [Line Items]
Senior secured debt	$ 0	$ 0