Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Effective Income Tax Rate Reconciliation (Details)

v3.21.2
Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Income Taxes        
Provision for income taxes $ 0 $ 0 $ 2,000 $ 3,000
Effective tax rate     0.02% 0.03%