Subsequent Events - Additional Information (Details) - Research Collaboration Agreement - CRISPR-Cas9		3 Months Ended
May 05, 2021	Mar. 31, 2021
Development and Regulatory Approval Milestones
Subsequent Event [Line Items]
Potential future payments		Totaling less than mid-twenty million dollars
Subsequent Event \| NK Cell Products
Subsequent Event [Line Items]
Number of non-exclusive rights to gene editing targets	5

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

No definition available.

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