Disaggregated Revenues - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 149,824	$ 143,644
Net product sales
Disaggregation of Revenue [Line Items]
Total revenues	141,988	138,461
Qelbree
Disaggregation of Revenue [Line Items]
Total revenues	64,745	45,104
GOCOVRI
Disaggregation of Revenue [Line Items]
Total revenues	30,689	26,562
APOKYN
Disaggregation of Revenue [Line Items]
Total revenues	14,976	16,649
Trokendi XR
Disaggregation of Revenue [Line Items]
Total revenues	12,801	15,989
Oxtellar XR
Disaggregation of Revenue [Line Items]
Total revenues	10,198	26,943
Other
Disaggregation of Revenue [Line Items]
Total revenues	8,579	7,214
Royalty, licensing and other revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 7,836	$ 5,183