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Revenues and Gross Profit (Tables) | 9 Months Ended
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Sep. 30, 2020
Revenues And Gross Profit [Abstract] |
Total Revenues and Gross Profit by Product Line | The following table, which is reconciled to consolidated amounts, provides total revenues and gross profit by product line.
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
|  | (Dollars in Millions) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials Business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 766.9 |  |  | $ | 818.7 |  |  | $ | 2,092.1 |  |  | $ | 2,121.4 |
Cement |  |  | 115.6 |  |  |  | 119.6 |  |  |  | 331.7 |  |  |  | 331.0 |
Ready mixed concrete |  |  | 254.6 |  |  |  | 271.8 |  |  |  | 689.4 |  |  |  | 724.2 |
Asphalt and paving services |  |  | 129.8 |  |  |  | 131.1 |  |  |  | 254.9 |  |  |  | 225.7 |
Less: interproduct revenues |  |  | (81.4 | ) |  |  | (77.3 | ) |  |  | (210.9 | ) |  |  | (203.6 | )
Products and services |  |  | 1,185.5 |  |  |  | 1,263.9 |  |  |  | 3,157.2 |  |  |  | 3,198.7 |
Freight |  |  | 75.0 |  |  |  | 91.5 |  |  |  | 212.9 |  |  |  | 224.8 |
Total Building Materials Business |  |  | 1,260.5 |  |  |  | 1,355.4 |  |  |  | 3,370.1 |  |  |  | 3,423.5 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 55.2 |  |  |  | 59.3 |  |  |  | 164.0 |  |  |  | 198.9 |
Freight |  |  | 5.7 |  |  |  | 5.5 |  |  |  | 16.2 |  |  |  | 16.3 |
Total Magnesia Specialties |  |  | 60.9 |  |  |  | 64.8 |  |  |  | 180.2 |  |  |  | 215.2 |
Total |  | $ | 1,321.4 |  |  | $ | 1,420.2 |  |  | $ | 3,550.3 |  |  | $ | 3,638.7 |
Gross profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials Business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 279.1 |  |  | $ | 287.1 |  |  | $ | 640.4 |  |  | $ | 636.5 |
Cement |  |  | 46.5 |  |  |  | 48.5 |  |  |  | 117.2 |  |  |  | 104.5 |
Ready mixed concrete |  |  | 24.7 |  |  |  | 29.0 |  |  |  | 56.7 |  |  |  | 62.5 |
Asphalt and paving services |  |  | 32.6 |  |  |  | 31.1 |  |  |  | 46.4 |  |  |  | 38.5 |
Products and services |  |  | 382.9 |  |  |  | 395.7 |  |  |  | 860.7 |  |  |  | 842.0 |
Freight |  |  | 0.9 |  |  |  | 0.2 |  |  |  | 0.3 |  |  |  | 0.4 |
Total Building Materials Business |  |  | 383.8 |  |  |  | 395.9 |  |  |  | 861.0 |  |  |  | 842.4 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 21.0 |  |  |  | 24.0 |  |  |  | 65.3 |  |  |  | 79.8 |
Freight |  |  | (1.0 | ) |  |  | (1.0 | ) |  |  | (3.2 | ) |  |  | (3.2 | )
Total Magnesia Specialties |  |  | 20.0 |  |  |  | 23.0 |  |  |  | 62.1 |  |  |  | 76.6 |
Corporate |  |  | 0.7 |  |  |  | 1.7 |  |  |  | 4.3 |  |  |  | 1.4 |
Total |  | $ | 404.5 |  |  | $ | 420.6 |  |  | $ | 927.4 |  |  | $ | 920.4 |

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