Annual report pursuant to Section 13 and 15(d)

Organization - Additional Information (Details)

v3.20.4
Organization - Additional Information (Details)
12 Months Ended
Dec. 31, 2020
investment_fund
Operating Leased Assets [Line Items]  
Initial lease term 22 years
Number of types of investment funds used by the company 3
Minimum  
Operating Leased Assets [Line Items]  
Initial lease term 20 years
Maximum  
Operating Leased Assets [Line Items]  
Initial lease term 25 years