Revenues - Schedule of Disaggregation of Product Sales (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 259,691	$ 170,992	$ 669,269	$ 442,497
Product Sales
Disaggregation of Revenue [Line Items]
Revenue	249,951	169,784	655,706	439,101
Product Sales \| United States
Disaggregation of Revenue [Line Items]
Revenue	248,608	169,176	652,847	435,035
Product Sales \| Outside of the United States
Disaggregation of Revenue [Line Items]
Revenue	1,343	608	2,859	4,066
Product Sales \| Auvelity
Disaggregation of Revenue [Line Items]
Revenue	207,606	136,102	540,584	351,975
Product Sales \| Sunosi
Disaggregation of Revenue [Line Items]
Revenue	38,454	31,611	104,905	84,645
Product Sales \| Symbravo
Disaggregation of Revenue [Line Items]
Revenue	3,891	2,071	10,217	2,481
Royalty and Milestone Revenue
Disaggregation of Revenue [Line Items]
Revenue	9,740	1,208	13,563	3,396
Royalty and Milestone Revenue \| United States
Disaggregation of Revenue [Line Items]
Revenue			500
Royalty and Milestone Revenue \| Outside of the United States
Disaggregation of Revenue [Line Items]
Revenue	9,740	1,208	13,063	3,396
Milestone Revenue \| Auvelity
Disaggregation of Revenue [Line Items]
Revenue			500
Milestone Revenue \| Sunosi
Disaggregation of Revenue [Line Items]
Revenue	8,514		9,060
Royalty Revenue \| Sunosi
Disaggregation of Revenue [Line Items]
Revenue	$ 1,226	$ 1,208	$ 4,003	$ 3,396