SEGMENT REPORTING (Narrative) (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)
Number of operating segments | segment		4
Number of reportable segments | segment		4
Revenues	[1]	$ 1,049,242	$ 996,511
Concrete [Member]
Revenues	[1]	94,765	83,637
Aggregates [Member]
Revenues	[1]	812,662	778,833
Asphalt [Member]
Revenues	[1]	$ 139,789	$ 132,090

[1] ¹ The geographic markets are defined by states/countries as follows: East market — Arkansas, Delaware, Illinois, Kentucky, Maryland, North Carolina, Pennsylvania, Tennessee, Virginia, and Washington D.C. Gulf Coast market — Alabama, Florida, Georgia, Louisiana, Mexico, Mississippi, Oklahoma, South Carolina and Texas West market — Arizona, California and New Mexico