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Commitments and Contingencies - Notes Payable (Details) - Broad - Sponsored Research Agreement - USD ($) $ in Millions	1 Months Ended
	Jan. 31, 2021	Jun. 30, 2018	Dec. 31, 2020
Notes Payable
Common stock issued		330,617
Promissory notes issued		$ 125.0
Market capitalization			$ 2,500.0
Subsequent Event
Notes Payable
Common stock issued	303,599
Accrued expense
Notes Payable
Success payment accrued			$ 12.5

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Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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