Contingent Liabilities and Commitments - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended
	Feb. 28, 2018	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Guarantee to Deerfield		$ 497	$ 774
Minimum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contractual obligation, annual amount		2,400
Maximum
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contractual obligation, annual amount		3,000
Annual amount of contractual obligation if LUMRYZ is approved by the FDA		4,200
Discontinued Operations, Disposed of by Sale | 2016 MIPA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Guarantee to Deerfield		774
Discontinued Operations, Disposed of by Sale | Cerecor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Guaranty assets		$ 771
FSC | Discontinued Operations, Disposed of by Sale | 2016 MIPA
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of royalty payable on net sales	15.00%
Royalty payable on net sales, maximum	$ 10,300