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Debt - Unsecured Credit Facilities (Details)
£ in Millions, $ in Millions, $ in Billions
9 Months Ended 12 Months Ended
Feb. 03, 2025
USD ($)
option
Sep. 30, 2025
CAD ($)
Dec. 31, 2024
Sep. 30, 2025
GBP (£)
Feb. 08, 2022
USD ($)
Secured Overnight Financing Rate (SOFR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 1.00%        
Federal Reserve Bank Of New York Rate          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 0.50%        
Minimum | Secured Overnight Financing Rate (SOFR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 1.00%        
Revolving Credit Facility          
Line of Credit Facility [Line Items]          
Maximum borrowing capacity $ 2.5       $ 2.5
Increase in borrowing capacity 1.0        
Additional tranches of term loans, value $ 2.0        
Revolving Credit Facility | Extension Option 1          
Line of Credit Facility [Line Items]          
Number of extension options | option 2        
Extension term 6 months        
Extension fee percentage 0.0625%        
Revolving Credit Facility | Extension Option 2          
Line of Credit Facility [Line Items]          
Number of extension options | option 1        
Extension term 12 months        
Extension fee percentage 0.125%        
Revolving Credit Facility | Unsecured Debt          
Line of Credit Facility [Line Items]          
Outstanding amount   $ 175.0   £ 16.5  
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Unsecured Debt | USD          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent)   0.85% 0.85%    
Revolving Credit Facility | Minimum          
Line of Credit Facility [Line Items]          
Facility fee percentage 0.10%        
Revolving Credit Facility | Minimum | Unsecured Debt          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent)   0.70%      
Revolving Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 0.70%        
Revolving Credit Facility | Minimum | Base Rate          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 0.00%        
Revolving Credit Facility | Maximum          
Line of Credit Facility [Line Items]          
Facility fee percentage 0.30%        
Revolving Credit Facility | Maximum | Unsecured Debt          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent)   1.40%      
Revolving Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 1.40%        
Revolving Credit Facility | Maximum | Base Rate          
Line of Credit Facility [Line Items]          
Basis spread on variable rate (percent) 0.40%