Seres Asset Purchase - Narrative (Details) - SERES Asset Purchase	Jun. 25, 2021 USD ($) shares	Apr. 09, 2021 USD ($) vehicle
Asset Acquisition [Line Items]
Aggregate cash consideration	$ 145,000,000
Number of shares required to be delivered (in shares) | shares	5,000,000
Sublease annual payments	$ 72,000
Initial royalty fee		$ 5,000,000
Fee per vehicle sold		$ 100
Vehicles sold milestone | vehicle		100,000
Exclusivity period		30 years
Milestone Period One
Asset Acquisition [Line Items]
Vehicles sold milestone | vehicle		10,000
Vehicles sold milestone period		2 years
Milestone Period Two
Asset Acquisition [Line Items]
Vehicles sold milestone | vehicle		100,000
Vehicles sold milestone period		10 years