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Revenues and Gross Profit (Tables) | 12 Months Ended
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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 |

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