Commitments and Contingencies - Narrative (Details) ft² in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2022 USD ($) ft²	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Loss Contingencies [Line Items]
Sublease income		$ 1,000,000.0	$ 1,000,000.0	$ 2,900,000	$ 2,900,000
DMSA
Loss Contingencies [Line Items]
Purchase order executed		37,900,000		37,900,000		$ 35,800,000
Non-refundable purchase commitments		36,000,000		36,000,000		$ 28,300,000
Costs incurred		3,400,000	5,800,000	22,900,000	14,200,000
Payments for development and manufacturing services		3,900,000	$ 4,000,000	19,600,000	$ 10,400,000
Building | SLC Lease
Loss Contingencies [Line Items]
Lease not yet commenced, lease liability		0		0
Lease not yet commenced, ROU asset		0		0
Lease not yet commenced, operating lease expense		$ 0		$ 0
Building | SLC Lease | Operating Lease, 9.3 Year Lease Agreement
Loss Contingencies [Line Items]
Lease not yet commenced, area under lease | ft²	78
Lease not yet commenced, period	9 years 3 months 18 days
Lease not yet commenced, undiscounted lease payments	$ 19,500,000