Commitments and Contingencies (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
Product Liability Contingency [Line Items]
Other commitments, due in next twelve months	$ 1.7
Drug Supplier Project Plan
Product Liability Contingency [Line Items]
Other commitments	$ 1.9
Term over which commitment expenses are incurred	12 months
Manufacture of Grb2
Product Liability Contingency [Line Items]
Other commitments	$ 1.4
Manufacturer of Prexigebersen
Product Liability Contingency [Line Items]
Other commitments	0.2
Testing Services
Product Liability Contingency [Line Items]
Other commitments	$ 0.3