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Commitments and Contingencies - Narrative (Details) ft² in Thousands, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Apr. 30, 2021 ft²	Dec. 31, 2020 USD ($)
Other Commitments [Line Items]
Not yet commenced, renewal term	127 months 15 days
Annual base rent	$ 0.9
Abatement period	9 months
Lease payments, annual increase, final year total	$ 1.2
Tenant incentives	$ 2.4
Current renewal term	5 years
Amount of square footage | ft²						25
Lease term						11 years
Rent expense		$ 0.7	$ 0.2	$ 1.5	$ 0.5
Purchase obligations outstanding		7.2		7.2			$ 3.1
Facility Lease Agreement Letter of Credit | Letter of Credit
Other Commitments [Line Items]
Letter of credit issued		$ 0.5		$ 0.5			$ 0.5

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- Definition

Lease Agreement, Number of Square Feet

+ References

No definition available.

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- Definition

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- Definition

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+ References

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
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-Paragraph 3
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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

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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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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