SHARE-BASED PAYMENTS - Number and weighted-average exercise prices of share options (Details)	6 Months Ended
Jun. 30, 2024 shares $ / shares
ESOP 2019
Number of options
Outstanding, beginning balance (in shares) \| shares	11,499,819
Granted during the year (in shares) \| shares	0
Forfeited during the year (in shares) \| shares	(491,955)
Exercised during the year (in shares) \| shares	0
Outstanding, ending balance (in shares) \| shares	11,007,864
Exercisable (in shares) \| shares	0
Weighted average exercise price
Outstanding, beginning balance (in USD per share) \| $ / shares	$ 9.40
Granted during the year (in USD per share) \| $ / shares	0
Forfeited during the year (in USD per share) \| $ / shares	10.74
Exercised during the year (in USD per share) \| $ / shares	0
Outstanding, ending balance (in USD per share) \| $ / shares	9.34
Exercisable (in USD per share) \| $ / shares	$ 0
ESOP 2023
Number of options
Outstanding, beginning balance (in shares) \| shares	3,411,636
Granted during the year (in shares) \| shares	0
Forfeited during the year (in shares) \| shares	(25,887)
Exercised during the year (in shares) \| shares	0
Outstanding, ending balance (in shares) \| shares	3,385,749
Exercisable (in shares) \| shares	0
Weighted average exercise price
Outstanding, beginning balance (in USD per share) \| $ / shares	$ 11.68
Granted during the year (in USD per share) \| $ / shares	0
Forfeited during the year (in USD per share) \| $ / shares	10.47
Exercised during the year (in USD per share) \| $ / shares	0
Outstanding, ending balance (in USD per share) \| $ / shares	11.69
Exercisable (in USD per share) \| $ / shares	$ 0

Activity Of Share Options In Share-Based Payment Arrangement

No definition available.

Name:	as_ActivityOfShareOptionsInShareBasedPaymentArrangementAbstract
Namespace Prefix:	as_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted Average Exercise Price Of Activity Of Share Options In Share-Based Payment Arrangement

+ References

No definition available.

+ Details

Name:	as_WeightedAverageExercisePriceOfActivityOfShareOptionsInShareBasedPaymentArrangementAbstract
Namespace Prefix:	as_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of share options outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_i&doctype=Standard
-URIDate 2023-03-23

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause vi
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_vi&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfOutstandingShareOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of share options exercisable in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_vii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of share options exercised in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_iv&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of share options forfeited in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_iii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of share options granted in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_ii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of share options exercisable in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted average exercise price of share options exercised in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of share options forfeited in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of share options granted in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted average exercise price of share options outstanding in a share-based payment arrangement. [Refer: Weighted average [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_i&doctype=Standard
-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2023-01-01
-Paragraph 45
-Subparagraph b
-Clause vi
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2023-en-r&anchor=para_45_b_vi&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	as_IfrsPlanNameAxis=as_EmployeeStockOwnershipPlan2019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	as_IfrsPlanNameAxis=as_EmployeeStockOwnershipPlan2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SHARE-BASED PAYMENTS - Number and weighted-average exercise prices of share options (Details)	6 Months Ended
	Jun. 30, 2024 shares $ / shares
ESOP 2019
Number of options
Outstanding, beginning balance (in shares) \| shares	11,499,819
Granted during the year (in shares) \| shares	0
Forfeited during the year (in shares) \| shares	(491,955)
Exercised during the year (in shares) \| shares	0
Outstanding, ending balance (in shares) \| shares	11,007,864
Exercisable (in shares) \| shares	0
Weighted average exercise price
Outstanding, beginning balance (in USD per share) \| $ / shares	$ 9.40
Granted during the year (in USD per share) \| $ / shares	0
Forfeited during the year (in USD per share) \| $ / shares	10.74
Exercised during the year (in USD per share) \| $ / shares	0
Outstanding, ending balance (in USD per share) \| $ / shares	9.34
Exercisable (in USD per share) \| $ / shares	$ 0
ESOP 2023
Number of options
Outstanding, beginning balance (in shares) \| shares	3,411,636
Granted during the year (in shares) \| shares	0
Forfeited during the year (in shares) \| shares	(25,887)
Exercised during the year (in shares) \| shares	0
Outstanding, ending balance (in shares) \| shares	3,385,749
Exercisable (in shares) \| shares	0
Weighted average exercise price
Outstanding, beginning balance (in USD per share) \| $ / shares	$ 11.68
Granted during the year (in USD per share) \| $ / shares	0
Forfeited during the year (in USD per share) \| $ / shares	10.47
Exercised during the year (in USD per share) \| $ / shares	0
Outstanding, ending balance (in USD per share) \| $ / shares	11.69
Exercisable (in USD per share) \| $ / shares	$ 0