Basis of Presentation (Details) $ / shares in Units, $ in Thousands	Feb. 20, 2020 USD ($) contingent_value_right $ / shares shares	Mar. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Jun. 19, 2020 $ / shares
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.01	$ 0.01
Contingent consideration liabilities | $		$ 104,200	$ 86,200
Business combination, consideration transferred, equity interests issued (in shares) | shares	26,844,877
Business combination common stock under contingent value right (in shares) | shares	86,630,633
Progenics
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.0013
Progenics
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01
Shares to be received from acquisition conversion (in shares) | shares	0.31
Number of CVRs | contingent_value_right	1
Aggregate cash payments percentage	40.00%
Percentage of total contingent consideration under CVRs	19.90%
Business combination contingent value right of total consideration | $	$ 100,000
Share price (in dollars per share) | $ / shares				$ 4.42
Progenics | Cash Payments 2022
Business Acquisition [Line Items]
Contingent consideration liabilities | $	100,000
Progenics | Cash Payments 2023
Business Acquisition [Line Items]
Contingent consideration liabilities | $	$ 150,000