REVENUE RECOGNITION AND RELATED ALLOWANCES - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation of Revenue [Line Items]
Total net revenues	$ 116,547	$ 73,855	$ 223,333	$ 138,332
Sales of generic pharmaceutical products
Disaggregation of Revenue [Line Items]
Total net revenues	63,317	49,863	127,030	98,970
Sales of established brand pharmaceutical products, royalties, and other pharmaceutical services
Disaggregation of Revenue [Line Items]
Total net revenues	28,926	13,790	55,669	27,868
Sales of rare disease pharmaceutical products
Disaggregation of Revenue [Line Items]
Total net revenues	$ 24,304	$ 10,202	$ 40,634	$ 11,494