Annual report pursuant to Section 13 and 15(d)

Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Parenthetical) (Details)

v3.21.2
Long-Term Investments - Schedule of Carrying Value and Ownership Percentage of Investment (Parenthetical) (Details)
Aug. 31, 2021
Jun. 30, 2021
May 17, 2021
Mar. 19, 2021
Jun. 30, 2020
Schedule Of Equity Method Investments [Line Items]          
Percentage of investments in privately-held entities accounted under equity method   44.90% 44.90%    
JMB          
Schedule Of Equity Method Investments [Line Items]          
Percentage of investments in privately-held entities accounted under equity method   0.00%   100.00% 20.60%
Company C          
Schedule Of Equity Method Investments [Line Items]          
Percentage of investments in privately-held entities accounted under equity method   10.00%     10.00%
Company C | Pinehurst | Subsequent Event          
Schedule Of Equity Method Investments [Line Items]          
Percentage of investments in privately-held entities accounted under equity method 49.00%