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Marketable Debt and Equity Securities - Equity Securities with Readily Determinable Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Equity Securities
Equity Securities with Readily Determinable Fair Value	$ 36,860	$ 5,303
Common Stock
Equity Securities
Equity Securities with Readily Determinable Fair Value	36,860	5,303
Astria/Catabasis | Common Stock
Equity Securities
Equity Securities with Readily Determinable Fair Value	3,449
INmune | Common Stock
Equity Securities
Equity Securities with Readily Determinable Fair Value	19,233
MiRagen/Viridian | Common Stock
Equity Securities
Equity Securities with Readily Determinable Fair Value	$ 14,178	$ 5,303

X

- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740

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+ References

No definition available.

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