SEGMENT REPORTING - Segment Financial Disclosure (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total revenues	$ 1,545.7	$ 1,649.0
Gross Profit	304.9	302.0
Depreciation, Depletion, Accretion and Amortization (DDA&A)	150.9	148.4
Cash and cash equivalents and restricted cash	300.1	140.0	$ 949.2	$ 161.5
Total assets	13,910.9	14,076.9	$ 14,545.7
Segment sales
Segment Reporting Information [Line Items]
Total revenues	1,625.8	1,751.5
Total assets	13,343.8	13,628.7
Intersegment sales
Segment Reporting Information [Line Items]
Total revenues	(80.1)	(102.5)
Other
Segment Reporting Information [Line Items]
Depreciation, Depletion, Accretion and Amortization (DDA&A)	6.2	6.7
General corporate assets
Segment Reporting Information [Line Items]
Total assets	267.0	308.2
Aggregates
Segment Reporting Information [Line Items]
Total revenues	1,211.2	1,194.1
Aggregates | Segment sales
Segment Reporting Information [Line Items]
Total revenues	1,291.3	1,296.6
Gross Profit	303.3	303.6
Depreciation, Depletion, Accretion and Amortization (DDA&A)	123.5	112.3
Total assets	11,816.8	11,507.0
Aggregates | Intersegment sales
Segment Reporting Information [Line Items]
Total revenues	(80.1)	(102.5)
Asphalt
Segment Reporting Information [Line Items]
Total revenues	186.2	169.8
Asphalt | Segment sales
Segment Reporting Information [Line Items]
Total revenues	186.2	169.8
Gross Profit	4.7	0.8
Depreciation, Depletion, Accretion and Amortization (DDA&A)	8.9	9.0
Total assets	630.6	608.4
Asphalt | Intersegment sales
Segment Reporting Information [Line Items]
Total revenues	0.0	0.0
Concrete
Segment Reporting Information [Line Items]
Total revenues	148.3	285.1
Concrete | Segment sales
Segment Reporting Information [Line Items]
Total revenues	148.3	285.1
Gross Profit	(3.1)	(2.4)
Depreciation, Depletion, Accretion and Amortization (DDA&A)	12.3	20.4
Total assets	896.4	1,513.3
Concrete | Intersegment sales
Segment Reporting Information [Line Items]
Total revenues	$ 0.0	$ 0.0