ACQUISITIONS - Asset Acquisition (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 15, 2021	Dec. 31, 2021	Dec. 31, 2020
Asset Acquisition [Line Items]
Purchase of Otrexup		$ 18,472	$ 0
Otrexup
Asset Acquisition [Line Items]
Purchase of Otrexup	$ 18,000
Deferred cash payment due in May and December 2022	26,021
Transaction costs	1,478
Total purchase price of assets acquired	45,499
Inventories	1,413
Intangible assets (Otrexup product rights)	44,086
Total assets acquired	$ 45,499