XML 81 R67.htm IDEA: XBRL DOCUMENT
v3.23.2

Commitments and Contingent Liabilities - Additional Information (Details) |  | 6 Months Ended
--- | --- | ---
Jan. 10, 2023 USD ($) | Jun. 30, 2023 USD ($) Agreement
Commitments And Contingencies [Line Items] |  |
Potential material losses from claims, legal proceedings probable of occurring |  | $ 0
Additional sought value for damages as part of requested modification | $ 66,000,000 |
Janssen Pharmaceutica N.V. |  |
Commitments And Contingencies [Line Items] |  |
Number of license agreements partially terminated | Agreement |  | 2

X
- Definition Commitments and contingencies. + References No definition available. + Details
Name: | alks_CommitmentsAndContingenciesLineItems
Namespace Prefix: | alks_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of license agreements partially terminated. + References No definition available. + Details
Name: | alks_NumberOfLicenseAgreementsPartiallyTerminated
Namespace Prefix: | alks_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 + Details
Name: | us-gaap_LossContingencyAccrualProvision
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483076/450-20-50-9 + Details
Name: | us-gaap_LossContingencyDamagesSoughtValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_CounterpartyNameAxis=alks_JanssenPharmaceuticaNVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |