REVENUES (Narrative) (Details)	6 Months Ended	24 Months Ended
	Jun. 30, 2018 item	Dec. 31, 2013 USD ($)	Jun. 30, 2019 USD ($)
Deferred Revenue Arrangement [Line Items]
Number of quarries | item	8
Proceeds from sale of production		$ 226,926,000
Term of the VPPs	25 years
Minimum [Member]
Deferred Revenue Arrangement [Line Items]
Coverage of warranty provisions	9 months
Maximum [Member]
Deferred Revenue Arrangement [Line Items]
Coverage of warranty provisions	1 year
Maximum [Member] | Construction Paving [Member]
Deferred Revenue Arrangement [Line Items]
Costs for paving contracts expense, expected amortization period	1 year
Forecast [Member]
Deferred Revenue Arrangement [Line Items]
Estimated deferred revenue to be recognized in the next 12 months			$ 7,470,000
Asphalt [Member] | Maximum [Member] | Construction Paving [Member]
Deferred Revenue Arrangement [Line Items]
Percent of segment's revenue	10.00%
Aggregates [Member] | Minimum [Member]
Deferred Revenue Arrangement [Line Items]
Percent of shipments used for publicly funded construction	45.00%
Aggregates [Member] | Maximum [Member]
Deferred Revenue Arrangement [Line Items]
Percent of shipments used for publicly funded construction	55.00%
Aggregates [Member] | Maximum [Member] | Services [Member]
Deferred Revenue Arrangement [Line Items]
Percent of segment's revenue	2.00%