XML 53 R35.htm IDEA: XBRL DOCUMENT v3.20.4
Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Assets (Details)
12 Months Ended
Dec. 31, 2020
Buildings | Minimum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of long-lived assets 13 years
Buildings | Maximum  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of long-lived assets 35 years
Building improvements  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of long-lived assets 15 years
Assembled workforce  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of finite-lived intangible assets 3 years
Computer equipment  
Property, Plant and Equipment [Line Items]  
Estimated useful lives of long-lived assets 3 years