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Fair Value of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
CARRYING VALUE    
Derivative [Line Items]    
Notes and bonds payable $ 4,732.6 $ 4,662.8
Real estate notes receivable 117.8 127.2
FAIR VALUE    
Derivative [Line Items]    
Notes and bonds payable 4,670.1 4,578.4
Real estate notes receivable $ 110.3 $ 122.4