Revenues and Gross Profit (Tables)

12 Months Ended

Dec. 31, 2023

Revenues And Gross Profit [Abstract]

Total Revenues and Gross Profit (Loss) by Product Line

The following tables, which are reconciled to consolidated amounts, provide total revenues and gross profit (loss) by line of business: Building Materials (further divided by product line) and Magnesia Specialties. Interproduct revenues represent sales from the aggregates product line to the ready mixed concrete and asphalt and paving product lines and sales from the cement product line to the ready mixed concrete product line. Total revenues and gross profit (loss) reflect continuing operations only.

years ended December 31 (in millions) Total revenues	2023			2022			2021
Building Materials business:
Aggregates	$	4,301.6		$	3,879.0		$	3,344.3
Cement		725.5			620.0			509.3
Ready mixed concrete		1,009.3			953.2			1,147.5
Asphalt and paving		887.1			787.9			517.9
Less: interproduct revenues		(461.7	)		(383.4	)		(403.7	)
Total Building Materials business		6,461.8			5,856.7			5,115.3
Magnesia Specialties		315.4			304.0			298.7
Consolidated total revenues	$	6,777.2		$	6,160.7		$	5,414.0
years ended December 31 (in millions) Gross profit (loss)	2023			2022			2021
Building Materials business:
Aggregates	$	1,378.1		$	983.8		$	907.6
Cement		333.6			202.7			155.9
Ready mixed concrete		102.0			70.7			96.5
Asphalt and paving		109.0			81.0			79.9
Total Building Materials business		1,922.7			1,338.2			1,239.9
Magnesia Specialties:		97.1			90.9			106.5
Corporate		2.8			(5.8	)		2.0
Consolidated gross profit	$	2,022.6		$	1,423.3		$	1,348.4

Domestic and Foreign Total Revenues

Domestic and foreign total revenues are as follows:

years ended December 31 (in millions)	2023		2022		2021
Domestic	$	6,707.2	$	6,077.6	$	5,338.5
Foreign		70.0		83.1		75.5
Consolidated total revenues	$	6,777.2	$	6,160.7	$	5,414.0

Summary of Information About the Company's Contract Balances

The following table presents information about the Company’s contract balances:

December 31
(in millions)	2023		2022
Costs in excess of billings	$	5.3	$	5.1
Billings in excess of costs	$	10.3	$	10.5