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v3.20.2

Commitments and Contingencies - Additional Information (Details) |  |  |  |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 22, 2020 ft² | Jul. 27, 2020 USD ($) | Jul. 02, 2020 USD ($) | Jul. 01, 2020 USD ($) ft² | Jun. 25, 2020 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2020 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Lease, description |  |  |  |  |  |  | (i) the 2014 Sublease and 2015 Sublease were extended from May 31, 2020 to August 2, 2021, (ii) effective July 1, 2020, the leased premises under the 2015 Sublease would be expanded to include an additional 4,999 square feet of space, and (iii) effective July 1, 2020, the rent under the 2015 Sublease would increase from approximately $14.6 per month to $20.6 per month.
Extension of sublease |  |  |  | May 31, 2020 to August 2, 2021 |  |  |
Lease term |  |  |  |  |  | 12 months | 12 months
Operating or finance lease |  |  |  |  | $ 0 |  | $ 374,000
Sub lease expiration date | Feb. 28, 2023 |  |  |  |  |  |
Sublease 2015 [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Additional area of space | ft² |  |  |  | 4,999 |  |  |
Increase in sublease rent |  |  | $ 20,600,000 | $ 14,600,000 |  |  |
2021 Sub-Lease Agreement [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Additional area of space | ft² | 6,877 |  |  |  |  |  |
Sublease rent |  |  |  |  | $ 3,700 | $ 405,700 |
Lease term |  |  |  |  | 5 years |  |
Pending Litigation [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Unpaid compensation amounts claimed |  | $ 1,140,000 |  |  |  |  |
Accrued unpaid compensation amounts |  |  |  |  |  | $ 1,140,000 | $ 1,140,000

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