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Significant Agreements - Additional Information (Details) € in Millions, $ in Millions	1 Months Ended			6 Months Ended
	Oct. 31, 2020 USD ($)	Oct. 31, 2020 EUR (€)	Aug. 31, 2020 EUR (€)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)	Jun. 30, 2019
One
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Equity interest acquired (as a percent)									10.00%
Cash consideration				$ 2.9
Remaining undiscounted payments due				2.6		€ 2.5	$ 5.7	€ 5.0
Research Innovation Fund Financing
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Proceeds from RIF			€ 10.0	$ 10.4
Interest rate			6.35%
Investments interest rate			15.00%
Annual interest rate in connection with transaction			3.175%
Long term debt term			8 years
Period of subsequent issuance			24 months
Equity interest held by related party				20.00%
Accretion of noncontrolling interest				$ 0.2
Foreign currency translation gain				0.9
Noncontrolling interest				11.1			11.9
Debt			€ 15.0	$ 15.7
Call Option \| One
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Equity interest acquired (as a percent)				10.00%		10.00%
Exercise price of call option to buy back ownership percentage	$ 6.3	€ 6.0
Puglia1 Grant
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Other income				$ 0.4	$ 0.4
Grant funding for certain facility and equipment investments				0.4
Deferred income				5.5			6.4
Deferred income, current liability				0.8			0.9
Grant proceeds collected				0.0
Grants receivable				5.0			5.4
Puglia1 Grant \| Maximum
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Grant funding for certain research and development expenditures				0.1	0.2
Grant funding for certain facility and equipment investments					0.2
Puglia 2 Grant
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Other income				1.0	$ 1.0
Deferred income				3.4			3.7
Deferred income, current liability				0.2			0.4
Grant proceeds collected				0.0
Grants receivable				$ 4.4			$ 3.6