Commitments and Contingencies - Narrative (Details)	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Apr. 30, 2023 USD ($) ft²
Loss Contingencies [Line Items]
Operating lease cost	$ 2,900,000	$ 2,900,000
DMSA, Non-Cancellable
Loss Contingencies [Line Items]
Purchase commitments	33,100,000		$ 37,600,000
DMSA
Loss Contingencies [Line Items]
Costs incurred	16,400,000	5,200,000
Payments for development and manufacturing services	13,500,000	3,800,000
Other than DMSA
Loss Contingencies [Line Items]
Purchase commitments	34,500,000		34,800,000
Building | SLC Lease | Operating Lease, 9.3 Year Lease Agreement, Terminated
Loss Contingencies [Line Items]
Accelerated depreciation on leasehold improvements in relation to SLC Lease termination		$ 7,900,000
Laboratory, Office, and Warehouse | New SLC Operating Lease | Operating Lease, 15 Year Lease Agreement
Loss Contingencies [Line Items]
Lease not yet commenced, area under lease | ft²				59,336
Lease not yet commenced, period				15 years
Lease not yet commenced, undiscounted lease payments				$ 13,400,000
Lease not yet commenced, lease liability	0		0
Lease not yet commenced, ROU asset	0		$ 0
Lease not yet commenced, operating lease expense	$ 0