Legal Proceedings (Details)	Aug. 05, 2021 Plaintiff
John Makris, et al. v. Ionis Pharmaceuticals, Inc., et al. [Member]
Legal Procedings [Abstract]
Number of plaintiffs	4

Number of plaintiffs that have filed claims pertaining to a loss contingency.

No definition available.

Name:	us-gaap_LossContingencyNumberOfPlaintiffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration