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- Definition

Research and development expenses reimbursement.

+ References

No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
	Apr. 19, 2021	Jul. 31, 2020	Apr. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Commitments And Contingencies [Line Items]
Noncancelable operating leases expiration year					$ 1,500
Rental expenses				$ 1,600		$ 4,300	$ 3,900
Research and development				84,506	60,041	204,774	100,202
Proceeds from loans						0	4,134
Stock-based compensation expense				$ 32,082	$ 7,645	90,880	$ 9,325
Initial Public Offering
Commitments And Contingencies [Line Items]
Stock-based compensation expense	$ 42,600					42,600
Former Employees \| Initial Public Offering
Commitments And Contingencies [Line Items]
Stock-based compensation expense	$ 4,300
Paycheck Protection Program Loan
Commitments And Contingencies [Line Items]
Proceeds from loans			$ 4,100
Post Employment Agreements \| Former Employees \| Initial Public Offering
Commitments And Contingencies [Line Items]
Stock-based compensation expense						4,300
Navistar, Inc. \| JDA
Commitments And Contingencies [Line Items]
Research and development						$ 10,000
Maximum \| Navistar, Inc. \| JDA
Commitments And Contingencies [Line Items]
Research and development expenses reimbursement		$ 10,000