REVENUES - Schedule of Revenues by Geographic Market (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ 1,755.9	$ 1,634.6
Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,853.8	1,721.6
Intersegment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(97.9)	(87.0)
East revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	469.8	490.5
Gulf Coast revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	877.9	792.6
West revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	506.1	438.5
Aggregates
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,352.6	1,248.9
Aggregates \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	1,450.5	1,335.9
Aggregates \| Intersegment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	(97.9)	(87.0)
Aggregates \| East revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	378.4	395.9
Aggregates \| Gulf Coast revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	834.1	738.6
Aggregates \| West revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	238.0	201.4
Asphalt
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	215.8	208.7
Asphalt \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	215.8	208.7
Asphalt \| Intersegment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0.0	0.0
Asphalt \| East revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	25.8	24.3
Asphalt \| Gulf Coast revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	41.7	52.4
Asphalt \| West revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	148.3	132.0
Concrete
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	187.5	177.0
Concrete \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	187.5	177.0
Concrete \| Intersegment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	0.0	0.0
Concrete \| East revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	65.6	70.3
Concrete \| Gulf Coast revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	2.1	1.6
Concrete \| West revenues \| Segment sales
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenues	$ 119.8	$ 105.1