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Contingent Liabilities and Commitments - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 28, 2018	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Purchase obligation		$ 5,500
Costs incurred, purchase obligation		3,348
Contractual obligation, annual amount		3,000
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Guarantee to Deerfield		774	$ 1,053
Costs incurred, purchase obligation		3,348
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		1,054
Discontinued Operations, Disposed of by Sale | Cerecor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Guaranty assets		$ 1,050
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

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