Segment Reporting (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting, Asset Reconciling Item [Line Items]
Total revenues		$ 661,817	$ 607,521	$ 667,238
Cost of goods sold	[1]	77,906	83,779	87,221
Research and development		108,796	91,593	74,552
Net earnings		73,865	1,316	60,711
Reportable Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total revenues		661,817	607,521	667,238
Cost of goods sold		77,906	83,779	87,221
Selling		153,105	149,955	147,289
Marketing		74,188	79,231	120,499
General and administrative		94,289	107,175	109,433
External development program expenses		70,691	57,101	42,992
Internal employee-related expenses		38,105	34,492	31,560
Research and development		108,796	91,593	74,552
Other segment items		79,668	94,472	67,533
Net earnings		73,865	1,316	60,711
Reportable Segment | ONAPGO
Segment Reporting, Asset Reconciling Item [Line Items]
External development program expenses		1,641	3,825	1,942
Reportable Segment | SPN-820
Segment Reporting, Asset Reconciling Item [Line Items]
External development program expenses		27,042	12,311	8,139
Reportable Segment | SPN-817
Segment Reporting, Asset Reconciling Item [Line Items]
External development program expenses		9,837	9,397	7,341
Reportable Segment | Qelbree
Segment Reporting, Asset Reconciling Item [Line Items]
External development program expenses		15,819	11,101	8,641
Reportable Segment | Early stage programs and other expenses
Segment Reporting, Asset Reconciling Item [Line Items]
External development program expenses		$ 16,352	$ 20,467	$ 16,929

[1] Excludes amortization of intangible assets.