Annual report pursuant to Section 13 and 15(d)

Description of Business and Summary of Significant Accounting Policies - Range of Estimated Useful Lives (Details)

v3.20.4
Description of Business and Summary of Significant Accounting Policies - Range of Estimated Useful Lives (Details)
12 Months Ended
Dec. 31, 2020
Leasehold and Land Improvements | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 10 years
Leasehold and Land Improvements | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 30 years
Furniture Fixtures and Equipment [Member] | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 3 years
Furniture Fixtures and Equipment [Member] | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives 10 years