Commitments and Contingencies - Narrative (Details) € in Millions, £ in Millions, $ in Millions	1 Months Ended
	Jul. 31, 2019 GBP (£)	Mar. 31, 2020 USD ($)	Jul. 31, 2019 EUR (€)
Commitment And Contingencies [Line Items]
Equipment purchase obligation | £	£ 0.8
Upfront payments to acquire equipment | £	£ 0.4
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
Biose Industrie | Exclusivity and Commitment Agreement
Commitment And Contingencies [Line Items]
Aggregate amount due under collaborative arrangement | $		$ 1.2