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Income Taxes (Detail) - Schedule of Effective Income Tax Rate Reconciliation
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]    
U.S. Statutory tax rate 21.00% 21.00%
Change in valuation reserve on deferred tax assets (21.00%) (21.00%)
Income tax (provision) benefit