Borrowings, Debt Dsicount And Issuance Costs

No definition available.

Name:	as_BorrowingsDebtDsicountAndIssuanceCosts
Namespace Prefix:	as_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Borrowings, Premium

+ References

No definition available.

+ Details

Name:	as_BorrowingsPremium
Namespace Prefix:	as_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	as_IfrsDebtInstrumentTerm
Namespace Prefix:	as_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Redemption Price Percentage

+ References

No definition available.

+ Details

Name:	as_RedemptionPricePercentage
Namespace Prefix:	as_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 7
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_7&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The gain (loss) arising from the difference between the carrying amount of the financial liability extinguished and the measurement of the consideration paid (equity instruments issued) to the creditor. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRIC
-Number 19
-IssueDate 2025-01-01
-Paragraph 11
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRIC&num=19&code=ifrs-tx-2025-en-r&anchor=para_11&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_GainLossArisingFromDifferenceBetweenCarryingAmountOfFinancialLiabilityExtinguishedAndConsiderationPaid
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of borrowings that the entity does not separately disclose in the same statement or note. [Refer: Borrowings]

+ References

+ Details

Name:	ifrs-full_OtherBorrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	ifrs-full_BorrowingsByNameAxis=as_SeniorSecuredNotesOf6.750Due2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=as_ChinaMerchantsBankCoLtdBondsAndGuranteesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=as_ChinaMerchantsBankCoLtdLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=as_ChinaMerchantsBankCoLtdSyntheticLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BorrowingsByNameAxis=as_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

BORROWINGS - Narrative (Details) ¥ in Millions, $ in Millions			3 Months Ended		6 Months Ended
	Oct. 20, 2025 CNY (¥)	Aug. 04, 2025 CNY (¥)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Mar. 16, 2026 USD ($)	Feb. 06, 2026 USD ($)	Dec. 31, 2025 USD ($)	Nov. 24, 2025	Aug. 21, 2025
Disclosure of detailed information about borrowings [line items]
Loss on debt extinguishment			$ 0.0	$ 0.0	$ (50.5)	$ 0.0
Other borrowings			147.4		147.4				$ 142.8
Amount of funding			147.4		147.4				935.1
USD 800 million of 6.750% new senior secured notes due 2031
Disclosure of detailed information about borrowings [line items]
Loan amount							$ 720.0	$ 80.0
Redemption price							105.65%	103.00%
Loss on debt extinguishment					50.5
Redemption premiums					43.1
Write-off of debt discount and issuance costs					7.4
China Merchants Bank Co Ltd Bonds And Gurantees
Disclosure of detailed information about borrowings [line items]
Loan amount \| ¥		¥ 540
China Merchants Bank Co Ltd Line Of Credit
Disclosure of detailed information about borrowings [line items]
Loan amount \| ¥	¥ 500	¥ 500
Duration of the loans	1 year	1 year
Other borrowings			73.7		73.7
Adjustment to interest rate basis	0.80%
China Merchants Bank Co Ltd Line Of Credit \| Bottom of range
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate										2.20%	2.15%
China Merchants Bank Co Ltd Synthetic Loan
Disclosure of detailed information about borrowings [line items]
Loan amount \| ¥		¥ 500
Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Amount of funding			$ 0.0		$ 0.0				$ 0.0