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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Property, Plant and Equipment [Line Items]      
Asset write-down $ 1.9 $ 2.1  
Contingencies related to COVID-19      
Property, Plant and Equipment [Line Items]      
Percentage of workforce furloughed or subject to reduced compensation, COVID-19     9.00%
Reduction to revenue, rent concessions $ 0.1