Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Fixed Assets Estimated Useful Lives (Details)

v3.20.4
Summary of Significant Accounting Policies - Schedule of Fixed Assets Estimated Useful Lives (Details)
 12 Months Ended
Dec. 31, 2020
Minimum | Furniture, fixtures and equipment  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 2 years
Minimum | Leasehold improvements  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 10 years
Minimum | Buildings and building improvements  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 10 years
Minimum | Computer software and hardware  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 3 years
Maximum | Furniture, fixtures and equipment  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 7 years
Maximum | Leasehold improvements  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 25 years
Maximum | Buildings and building improvements  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 40 years
Maximum | Computer software and hardware  
Property, Plant and Equipment [Line Items]  
Useful Life, fixed assets (in years) 7 years