Commitments and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Railcars	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Commitments And Contingencies [Line Items]
Purchase commitments for property, plant and equipment	$ 395.2
Asset retirement obligation depreciation and accretion	17.1	$ 15.5	$ 11.9
Liability reserve for insurance claims	46.9	48.2
Outstanding letters of credit	$ 32.2
Other Receivable, after Allowance for Credit Loss, Related Party, Type [Extensible Enumeration]	Related Party
Capital expenditures	$ 111.4	89.6	$ 99.0
Capital expenditures	$ 42.7
Percentage of employees represented in labor union	12.00%
Number of Railcars Commitment | Railcars	394
Woodville
Commitments And Contingencies [Line Items]
Collective bargaining agreement expiration month year	2026-06
Magnesia Specialties
Commitments And Contingencies [Line Items]
Collective bargaining agreement expiration month year	2027-08
South Texas Cement Business
Commitments And Contingencies [Line Items]
Purchase commitments for property, plant and equipment	$ 50.7
Interest-only loan receivable | Related Party
Commitments And Contingencies [Line Items]
Other Receivables		6.0
Surety Bonds
Commitments And Contingencies [Line Items]
Surety bonds	698.3
Revolving Facility
Commitments And Contingencies [Line Items]
Outstanding letters of credit	2.6	$ 2.6
Capital Addition Purchase Commitments
Commitments And Contingencies [Line Items]
Purchase commitments for property, plant and equipment	162.1
Energy And Service Contracts
Commitments And Contingencies [Line Items]
Purchase commitments for property, plant and equipment	$ 233.1