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Revenues and Gross Profit (Tables) | 9 Months Ended
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Sep. 30, 2019
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, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (Dollars in Thousands) |
Total revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials Business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 818,693 |  |  | $ | 691,822 |  |  | $ | 2,121,443 |  |  | $ | 1,785,961 |
Cement |  |  | 119,609 |  |  |  | 98,223 |  |  |  | 330,976 |  |  |  | 300,554 |
Ready mixed concrete |  |  | 271,844 |  |  |  | 254,686 |  |  |  | 724,179 |  |  |  | 750,424 |
Asphalt and paving services |  |  | 131,099 |  |  |  | 95,961 |  |  |  | 225,669 |  |  |  | 191,652 |
Less: interproduct revenues |  |  | (77,419 | ) |  |  | (66,839 | ) |  |  | (203,554 | ) |  |  | (205,681 | )
Products and services |  |  | 1,263,826 |  |  |  | 1,073,853 |  |  |  | 3,198,713 |  |  |  | 2,822,910 |
Freight |  |  | 91,543 |  |  |  | 72,264 |  |  |  | 224,765 |  |  |  | 185,390 |
Total Building Materials Business |  |  | 1,355,369 |  |  |  | 1,146,117 |  |  |  | 3,423,478 |  |  |  | 3,008,300 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 59,334 |  |  |  | 68,365 |  |  |  | 198,886 |  |  |  | 201,390 |
Freight |  |  | 5,543 |  |  |  | 5,158 |  |  |  | 16,304 |  |  |  | 14,357 |
Total Magnesia Specialties |  |  | 64,877 |  |  |  | 73,523 |  |  |  | 215,190 |  |  |  | 215,747 |
Total |  | $ | 1,420,246 |  |  | $ | 1,219,640 |  |  | $ | 3,638,668 |  |  | $ | 3,224,047 |
Gross profit (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Building Materials Business: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregates |  | $ | 287,024 |  |  | $ | 209,666 |  |  | $ | 636,505 |  |  | $ | 461,912 |
Cement |  |  | 48,519 |  |  |  | 32,543 |  |  |  | 104,526 |  |  |  | 97,582 |
Ready mixed concrete |  |  | 28,948 |  |  |  | 20,632 |  |  |  | 62,454 |  |  |  | 66,226 |
Asphalt and paving services |  |  | 31,102 |  |  |  | 25,022 |  |  |  | 38,519 |  |  |  | 35,191 |
Products and services |  |  | 395,593 |  |  |  | 287,863 |  |  |  | 842,004 |  |  |  | 660,911 |
Freight |  |  | 317 |  |  |  | (47 | ) |  |  | 378 |  |  |  | 432 |
Total Building Materials Business |  |  | 395,910 |  |  |  | 287,816 |  |  |  | 842,382 |  |  |  | 661,343 |
Magnesia Specialties: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Products and services |  |  | 23,997 |  |  |  | 26,823 |  |  |  | 79,816 |  |  |  | 76,756 |
Freight |  |  | (987 | ) |  |  | (1,076 | ) |  |  | (3,226 | ) |  |  | (3,280 | )
Total Magnesia Specialties |  |  | 23,010 |  |  |  | 25,747 |  |  |  | 76,590 |  |  |  | 73,476 |
Corporate |  |  | 1,725 |  |  |  | (579 | ) |  |  | 1,446 |  |  |  | 4,474 |
Total |  | $ | 420,645 |  |  | $ | 312,984 |  |  | $ | 920,418 |  |  | $ | 739,293 |

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