Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.21.2
Commitments and Contingencies - Additional Information (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]    
Accrued termination and cancellation charges $ 0 $ 0
Royalty payment due $ 0 $ 0