DESCRIPTION OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Related Party Transactions (Details)	Dec. 31, 2020
GSK
Related Parties
Percentage of common stock owned by a related party	31.60%
Sarissa Capital
Related Parties
Percentage of common stock owned by a related party	6.30%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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