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v3.23.2

Revenues and Gross Profit - Total Revenues and Gross Profit (Loss) by Product Line (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Product Information [Line Items] |  |  |  |
Total Revenues | $ 1,820.8 | $ 1,641.7 | $ 3,174.9 | $ 2,872.5
Gross profit (loss) | 560.4 | 425.2 | 863.2 | 581.3
Interproduct Revenues |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | (121.1) | (102.4) | (208.6) | (191.5)
Corporate |  |  |  |
Product Information [Line Items] |  |  |  |
Gross profit (loss) | (3.4) | 1.6 | (1.4) | (6.4)
Building Materials Business |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 1,740.3 | 1,560.0 | 3,011.0 | 2,713.8
Building Materials Business | Operating Segments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 1,740.3 | 1,560.0 | 3,011.0 | 2,713.8
Gross profit (loss) | 536.1 | 399.1 | 811.9 | 537.5
Magnesia Specialties | Operating Segments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 80.5 | 81.7 | 163.9 | 158.7
Gross profit (loss) | 27.7 | 24.5 | 52.7 | 50.2
Aggregates | Building Materials Business | Operating Segments | Reportable Subsegments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 1,151.4 | 1,057.6 | 2,063.3 | 1,814.2
Gross profit (loss) | 370.9 | 307.3 | 608.9 | 410.0
Cement | Building Materials Business | Operating Segments | Reportable Subsegments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 197.7 | 162.5 | 366.2 | 300.8
Gross profit (loss) | 93.3 | 50.7 | 140.4 | 77.5
Ready Mixed Concrete | Building Materials Business | Operating Segments | Reportable Subsegments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 271.4 | 226.6 | 491.3 | 517.8
Gross profit (loss) | 35.4 | 14.6 | 46.6 | 36.6
Asphalt and Paving | Building Materials Business | Operating Segments | Reportable Subsegments |  |  |  |
Product Information [Line Items] |  |  |  |
Total Revenues | 240.9 | 215.7 | 298.8 | 272.5
Gross profit (loss) | $ 36.5 | $ 26.5 | $ 16.0 | $ 13.4

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