v3.21.1
Income Taxes - Income tax expense (benefit) (Details) - USD ($)
3 Months Ended 10 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of income tax expense (benefit)          
Current income taxes     $ 0 $ 0 $ 0
Deferred income taxes     0 0 0
Income tax expense (benefit) $ 0 $ 0 $ 0 $ 0 $ 0