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

COMMITMENTS AND CONTINGENCIES - Supply Agreement (Details) - Supply Agreement - USD ($) $ in Millions	Sep. 30, 2020	May 20, 2020
Cosette Pharmaceuticals, Inc.
Supply Commitment [Line Items]
Total commitments		$ 6.5
Catalent Pharma Solutions
Supply Commitment [Line Items]
Total commitments		$ 1.0
Jubilant HollisterStier LLC
Supply Commitment [Line Items]
Total commitments	$ 2.9