Commitments and Contingencies - Narrative (Details) € in Millions, $ in Millions	1 Months Ended	15 Months Ended
	Jul. 31, 2019 EUR (€)	Sep. 30, 2020 EUR (€)	Sep. 30, 2020 USD ($)
Sacco | Collaborative Arrangement
Commitment And Contingencies [Line Items]
Term of collaboration arrangement	5 years
Period of inactive manufacturing services causing termination under collaborative arrangement	6 months
Aggregate amount due under collaborative arrangement	€ 3.0
Annual amount due under collaborative arrangement	€ 0.6
Fee incurred under collaborative arrangement		€ 1.2
Biose Industrie | Exclusivity and Commitment Agreement
Commitment And Contingencies [Line Items]
Aggregate amount due under collaborative arrangement | $			$ 0.8