Basis of Presentation and Significant Accounting Policies - Purchase of Rights to Future Milestones and Royalties and Income Taxes and Net Income (Loss) per Share (Details) - USD ($) $ in Millions |
9 Months Ended | 12 Months Ended |
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Sep. 30, 2021 |
Dec. 31, 2020 |
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Purchase of Rights to Future Milestones and Royalties | ||
Impairment of long-term royalty receivable | $ 0.0 | $ 0.0 |
Income tax penalties or interest charged | $ 0.0 |
X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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X | ||||||||||
- Definition The aggregate amount of write-downs for impairments recognized during the period for long term royalty receivable assets. No definition available.
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X | ||||||||||
- References No definition available.
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