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Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		5 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	May 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Property, plant and equipment, net	$ 14,088			$ 14,088		$ 16,805
Lease cost	1,100	$ 1,100		3,200	$ 3,300
Affiliated Entity \| Corporate Headquarters Facility Rental
Related Party Transaction [Line Items]
Lease cost		$ 800	$ 1,400
Rent expense under operating leases					$ 2,500
Stockholder D \| Investor
Related Party Transaction [Line Items]
Accrued purchases	100			100		6,300
Outstanding purchase commitment	16,400			16,400		15,000
Accounts receivable from related parties	17			17		1,500
Stockholder D \| Affiliated Entity \| Manufacturing Equipment \| Assets Leased to Related Party
Related Party Transaction [Line Items]
Property, plant and equipment, net	$ 400			$ 400		$ 400