Commitments and Contingencies - Additional Information (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020 USD ($) Lease	Dec. 31, 2019 USD ($)
Commitments And Contingencies Disclosure [Abstract]
Number of operating leases outstanding | Lease		1
Operating lease beginning period		2017-10
Operating lease expiration period		2020-10
Lessee, operating lease, discount rate		8.00%
Operating lease, option to extend		true
Available operating lease extension period		20 months 15 days
Operating lease, option to extend	the lessor extended the lease for an additional 20.5 month term commencing November 1, 2020. The Company does not have an option to extend the lease term beyond the current extension	option to extend the lease for an additional 20.5 month period
Operating lease extended term	20 months 15 days
Extended lease term starting date	Nov. 01, 2020
Fair value of right of use asset		$ 352,000,000
Fair value of operating lease liabilities		$ 352,000,000
Operating lease, discount rate		8.00%
Rent expenses		$ 212,000	$ 212,000