Disaggregated Revenues - Summary of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenues	$ 153,764	$ 152,506
Net product sales
Disaggregation of Revenue [Line Items]
Total revenues	140,575	147,464
Trokendi XR
Disaggregation of Revenue [Line Items]
Total revenues	34,790	62,832
Oxtellar XR
Disaggregation of Revenue [Line Items]
Total revenues	28,915	27,521
GOCOVRI
Disaggregation of Revenue [Line Items]
Total revenues	26,010	22,601
Qelbree
Disaggregation of Revenue [Line Items]
Total revenues	25,782	8,283
APOKYN
Disaggregation of Revenue [Line Items]
Total revenues	17,209	18,448
Other
Disaggregation of Revenue [Line Items]
Total revenues	7,869	7,779
Royalty revenues
Disaggregation of Revenue [Line Items]
Total revenues	$ 13,189	$ 5,042