Revenue - Schedule of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 333,615	$ 124,456	$ 52,158
Product sales, net
Disaggregation of Revenue [Line Items]
Total revenues	319,196	82,526	15,600
IBSRELA
Disaggregation of Revenue [Line Items]
Total revenues	158,286	80,062	15,600
XPHOZAH
Disaggregation of Revenue [Line Items]
Total revenues	160,910	2,464	0
Product supply revenue
Disaggregation of Revenue [Line Items]
Total revenues	11,649	6,121	1,527
Licensing revenue
Disaggregation of Revenue [Line Items]
Total revenues	78	35,809	35,031
Non-cash royalty revenue related to the sale of future royalties
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,692	$ 0	$ 0