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Notes and Contracts Payable (Aggregate Annual Maturities of Notes and Contracts Payable) (Detail) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Maturities of Long-term Debt [Abstract]    
2024 $ 301.7  
2025 1.3  
2026 0.3  
2027 0.8  
2028 0.1  
Thereafter 1,100.0  
Debt And Capital Lease Obligations Before Discounts Premiums Debt Issuance Costs $ 1,404.2 $ 1,657.8