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REVENUE - Schedule of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 110,329	$ 98,241	$ 282,105	$ 217,486
Product sales, net
Disaggregation of Revenue [Line Items]
Total revenues	$ 105,515	$ 92,090	$ 263,406	$ 208,193
Product sales, net | Gross product revenue | Product Concentration Risk
Disaggregation of Revenue [Line Items]
Product sales, net as a percentage of total revenues	95.60%	93.70%	93.40%	95.70%
IBSRELA
Disaggregation of Revenue [Line Items]
Total revenues	$ 78,158	$ 40,638	$ 187,606	$ 104,444
XPHOZAH
Disaggregation of Revenue [Line Items]
Total revenues	27,357	51,452	75,800	103,749
Product supply revenue
Disaggregation of Revenue [Line Items]
Total revenues	0	5,322	6,439	7,461
Licensing revenue
Disaggregation of Revenue [Line Items]
Total revenues	25	20	5,065	56
Non-cash royalty revenue related to the sale of future royalties
Disaggregation of Revenue [Line Items]
Total revenues	$ 4,789	$ 809	$ 7,195	$ 1,776

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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