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Subsequent Events (Details) - Subsequent event
$ in Millions
Jul. 29, 2021
USD ($)
ft²
Jul. 22, 2021
USD ($)
Corporate Joint Venture | Joint Venture With Blackstone Affiliate    
Subsequent Event    
Non-controlling ownership interest percentage 35.00%  
Land Outside Of London, United Kingdom | Corporate Joint Venture    
Subsequent Event    
Area of real estate property (in square feet) | ft² 91  
Payments to acquire land $ 167.5  
Revolving credit facility | Unsecured debt    
Subsequent Event    
Proceeds from lines of credit   $ 50.0