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Income Taxes - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Tax Disclosure [Abstract]      
Statutory U.S. Federal Tax Rate 21.00%    
Interest or penalties expense $ 0 $ 0 $ 0
Valuation allowance related to deferred tax assets $ 0 $ 0