Date when the business acquisition agreement was executed, in YYYY-MM-DD format.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

+ Details

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Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479405/805-10-25-23

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-13

+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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Period Type:

- Details

Name:	us-gaap_NatureOfExpenseAxis=atk_DebtIssuanceMember
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- Details

Name:	us-gaap_NatureOfExpenseAxis=atk_LegalDueDiligenceAndAccountingMember
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Business Combination (Details 1) - USD ($)		12 Months Ended
Business Combination (Details 1) - USD ($)	Apr. 29, 2024	Aug. 31, 2024	Aug. 26, 2023	Aug. 27, 2022
Business Acquisition [Line Items]
Business transaction costs		$ 14,524,000	$ 0	$ 0
Acquisition of OWYN
Business Acquisition [Line Items]
Agreement date of OWYN Acquisition	Apr. 29, 2024
OWYN Acquisition gross consideration		281,900,000
Business transaction costs		14,500,000
Acquisition of OWYN \| Transaction advisory
Business Acquisition [Line Items]
Business transaction costs		5,700,000
Acquisition of OWYN \| Debt issuance
Business Acquisition [Line Items]
Business transaction costs		3,400,000
Acquisition of OWYN \| Legal, due diligence, and accounting
Business Acquisition [Line Items]
Business transaction costs		$ 5,400,000