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Debt - Unsecured Revolving Credit and Term Loan Facilities (Details) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Mar. 19, 2020
Line of Credit Facility [Line Items]      
Outstanding borrowings $ 0 $ 0  
Revolving credit facility | Credit Facility      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity 1,065,000,000.000    
Revolving credit facility | Unsecured revolving credit facility      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity 850,000,000    
Outstanding borrowings 0 0  
Revolving credit facility | Unsecured term loan facilities      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity 215,000,000    
Outstanding borrowings 215,000,000 215,000,000  
Revolving credit facility | Unsecured term loan facility      
Line of Credit Facility [Line Items]      
Maximum borrowing capacity     $ 175,000,000
Outstanding borrowings $ 175,000,000 $ 175,000,000  
Accordion feature, new maximum borrowing capacity     $ 225,000,000