Subsequent Events (Details) $ in Millions	Mar. 11, 2021 USD ($)
Subsequent Event [Member] \| MCTI [Member] \| Clinical Development and Commercialization of COVID-19 Vaccine [Member]
Subsequent Events [Abstract]
Committed funding to COVID-19 vaccine consortium	$ 60

The minimum amount the entity agreed to spend under the long-term purchase commitment.

No definition available.

Name:	us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration