XML 36 R29.htm IDEA: XBRL DOCUMENT
v3.24.1.1.u2

Organization and Description of Business - Additional Information (Details) - Alkermes - USD ($) $ in Millions | Nov. 15, 2023 | Nov. 14, 2023
--- | --- | ---
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |
Effective time of distribution |  | Nov. 15, 2023
Cash distribution received from parent |  | $ 275.0
Distribution term of shares | one ordinary share of the Company for every ten ordinary shares |

X
- Definition Distribution made to limited liability company distribution term of shares. + References No definition available. + Details
Name: | mura_DistributionMadeToLimitedLiabilityCompanyDistributionTermOfShares
Namespace Prefix: | mura_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from cash distributions from parent. + References No definition available. + Details
Name: | mura_ProceedsFromCashDistributionsFromParent
Namespace Prefix: | mura_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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 808 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479402/808-10-50-1 + Details
Name: | us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date of distribution for distribution of cash or unit to member of limited liability company (LLC), in YYYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 + Details
Name: | us-gaap_DistributionMadeToLimitedLiabilityCompanyLLCMemberDistributionDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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