GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

GOODWILL AND INTANGIBLE ASSETS [Abstract]

Changes in Carrying Amount of Goodwill by Reportable Segment

in millions	Aggregates	Asphalt	Concrete	Calcium	Total
Goodwill
Totals at December 31, 2021	$      3,316.6	$         91.6	$       288.5	$           0.0	$      3,696.7
Goodwill of acquired businesses 1	13.7	0.0	30.1	0.0	43.8
Goodwill impairment	0.0	0.0	(50.9)	0.0	(50.9)
Totals at December 31, 2022	$      3,330.3	$         91.6	$       267.7	$           0.0	$      3,689.6
Goodwill of acquired businesses 1	(0.1)	0.0	0.0	0.0	(0.1)
Goodwill of divested businesses 1	0.0	0.0	(157.8)	0.0	(157.8)
Totals at December 31, 2023	$      3,330.2	$         91.6	$       109.9	$           0.0	$      3,531.7

¹ See Note 19 for acquisitions and divestitures.

Gross Carrying Amount and Accumulated Amortization by Major Intangible Asset Class

in millions	2023	2022
Gross Carrying Amount
Contractual rights in place	$       1,592.7	$      1,771.5
Permitting, permitting compliance and zoning rights	206.8	191.1
Other 1	90.4	116.5
Total gross carrying amount	$       1,889.9	$      2,079.1
Accumulated Amortization
Contractual rights in place	$         (344.5)	$        (302.9)
Permitting, permitting compliance and zoning rights	(59.5)	(49.0)
Other 1	(25.2)	(25.1)
Total accumulated amortization	$         (429.2)	$        (377.0)
Total Intangible Assets Subject to Amortization, net	$       1,460.7	$      1,702.1
Intangible Assets with Indefinite Lives	0.0	0.0
Total Intangible Assets, net	1,460.7	1,702.1
Amortization Expense for the Year	$            88.1	$           97.6

¹ Includes noncompetition agreements, patents, customer relationships, tradenames and trademarks.

Estimated Amortization Expense

in millions
Estimated Amortization Expense for Five Subsequent Years 1
2024	$           79.7
2025	78.4
2026	73.9
2027	72.6
2028	71.0

¹ Includes amortization of quarry development assets (including pre-production stripping costs) reported within other noncurrent assets in our accompanying Consolidated Balance Sheets.