Quarterly report pursuant to Section 13 or 15(d)

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)

v3.22.1
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
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
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