XML 58 R44.htm IDEA: XBRL DOCUMENT v3.25.3

Revenue from contracts with customers - Schedule of Provisions for Sales Discounts and Allowances (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($)
Disaggregation of Revenue [Line Items]
Beginning balance	$ 336,427
Current provisions relating to sales in current year	804,416
Adjustments relating to prior years	(42,458)
Payments relating to sales in current year	(608,968)
Payments relating to sales in prior years	(173,949)
Ending Balance	315,468
Contractual Adjustments
Disaggregation of Revenue [Line Items]
Beginning balance	228,978
Current provisions relating to sales in current year	404,353
Adjustments relating to prior years	(34,939)
Payments relating to sales in current year	(260,213)
Payments relating to sales in prior years	(127,928)
Ending Balance	210,251
Discounts
Disaggregation of Revenue [Line Items]
Beginning balance	43,645
Current provisions relating to sales in current year	312,419
Adjustments relating to prior years	156
Payments relating to sales in current year	(293,195)
Payments relating to sales in prior years	(23,940)
Ending Balance	39,085
Product Returns
Disaggregation of Revenue [Line Items]
Beginning balance	50,507
Current provisions relating to sales in current year	19,841
Adjustments relating to prior years	(7,302)
Payments relating to sales in prior years	(9,569)
Ending Balance	53,477
Other
Disaggregation of Revenue [Line Items]
Beginning balance	13,297
Current provisions relating to sales in current year	67,803
Adjustments relating to prior years	(373)
Payments relating to sales in current year	(55,560)
Payments relating to sales in prior years	(12,512)
Ending Balance	$ 12,655

X

- Definition

Adjustments relating to prior years.

+ References

No definition available.

+ Details

Name:	alks_AdjustmentsRelatingToPriorYears
Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Current provisions relating to sales in current year.

+ References

No definition available.

+ Details

Name:	alks_CurrentProvisionsRelatingToSalesInCurrentYear
Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Payments credits relating to sales in current year.

+ References

No definition available.

+ Details

Name:	alks_PaymentsCreditsRelatingToSalesInCurrentYear
Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Payments credits relating to sales in prior years.

+ References

No definition available.

+ Details

Name:	alks_PaymentsCreditsRelatingToSalesInPriorYears
Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

provisions for sales and allowances.

+ References

No definition available.

+ Details

Name:	alks_ProvisionsForSalesAndAllowances
Namespace Prefix:	alks_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-5

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 91
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-91

+ Details

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

X

- Details

Name:	us-gaap_ValuationAllowancesAndReservesTypeAxis=alks_ContractualAdjustmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ValuationAllowancesAndReservesTypeAxis=alks_DiscountsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ValuationAllowancesAndReservesTypeAxis=alks_ProductReturnsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ValuationAllowancesAndReservesTypeAxis=alks_OtherAdjustmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: