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Commitments and Contingencies - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 16, 2020
complaint
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Number of claims which the Company filed motions to dismiss | complaint 2        
Office Space Lease Expiring December 31, 2024          
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Operating lease, discount rate (as a percent)   13.00%   13.00%  
Operating lease, remaining term       3 years 6 months  
Rent expense   $ 0.1 $ 0.1 $ 0.1 $ 0.2
Cash payments related to operating lease   $ 0.1 $ 0.1 $ 0.2 $ 0.2