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Fair Value - Other Fair Value Measurements (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Dec. 31, 2024
Concrete | Other non-current    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Life Insurance, face amount $ 11.1  
Carrying Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of debt $ 26.7 $ 26.8