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Income Taxes (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Federal  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards $ 201.3
Net operating loss carryforwards are not subject to expiration 165.3
State  
Operating Loss Carryforwards [Line Items]  
Net operating loss carryforwards $ 64.9