XML 173 R79.htm IDEA: XBRL DOCUMENT v3.20.4

Collaboration Agreements - Chiesi Agreement Total Transaction Price to the Identified Performance Obligations (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	$ 87,225
Chiesi agreement
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	42,496
Chiesi agreement | Upfront payment
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	25,000
Chiesi agreement | Research and development
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	17,496
Chiesi agreement | Chiesi Agreement transaction price
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	42,496
Chiesi agreement | Remaining unsatisfied performance obligation
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Remaining performance obligations	$ 42,293

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

No definition available.

+ Details

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

X

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

+ Details

Name:	us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis=mrna_ChiesiAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=mrna_UpfrontPaymentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=mrna_ResearchAndDevelopmentFundingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=mrna_ChiesiAgreementTransactionPriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ContractWithCustomerBasisOfPricingAxis=mrna_RemainingUnsatisfiedPerformanceObligationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: