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GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2024 USD ($) segment | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment charges | $ 86.6 |  | $ 86.6 | $ 0.0 |
Goodwill, accumulated impairment losses |  |  | $ 390.2 |  |
Number of reportable segments | segment |  |  | 3 |  |
Impairment of intangible assets |  |  | $ 0.0 | $ 0.0 | $ 0.0
Former Cement |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill, accumulated impairment losses |  |  | 252.7 |  |
Concrete |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment charges |  |  | 86.6 |  |
Goodwill, accumulated impairment losses |  |  | $ 137.5 |  |
New York, New Jersey and Pennsylvania |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill impairment charges |  | $ 50.9 |  |  |

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