SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue Recognition - License revenue (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	May 31, 2021
Agreements
Revenue		$ 10,797	$ 10,951	$ 21,283	$ 16,334
License
Agreements
Revenue		$ 1,000	2,000	$ 1,000	2,000
License | Distribution Agreement | Adium
Agreements
Maximum regulatory milestones						$ 3,000
License, Transfer of license and know-how | Distribution Agreement | Adium
Agreements
Revenue			$ 2,000		$ 2,000
License, Milestone | Distribution Agreement | Adium
Agreements
Revenue	$ 1,000