SEGMENT REPORTING (Narrative) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 mi segment	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of operating segments									4
Number of reportable segments									4
Net sales	$ 652,881,000	$ 775,183,000	$ 696,078,000	$ 504,554,000	$ 574,886,000	$ 687,616,000	$ 648,890,000	$ 499,851,000	$ 2,628,696,000	$ 2,411,243,000	$ 2,406,909,000
Radius for delivering product, minimum									20
Radius for delivering product, maximum									25
Equity method investments	22,962,000				22,965,000				22,962,000	22,965,000	22,876,000
Concrete [Member]
Segment Reporting Information [Line Items]
Number Of States In Which Segments Serve									6
Net sales									471,700,000	406,400,000	374,700,000
Percentage of product weight attributable to Aggregates									78.00%
Asphalt Mix [Member]
Segment Reporting Information [Line Items]
Number Of States In Which Segments Serve									3
Net sales									393,400,000	378,100,000	399,000,000
Percentage of product weight attributable to Aggregates									95.00%
Aggregates [Member]
Segment Reporting Information [Line Items]
Number Of States In Which Segments Serve									18
Number Of Additional States Served									11
Net sales									1,713,600,000	1,581,200,000	1,591,400,000
Nondomestic [Member]
Segment Reporting Information [Line Items]
Long-lived assets	140,504,000				138,415,000				140,504,000	138,415,000	142,988,000
Nondomestic [Member] | Aggregates [Member]
Segment Reporting Information [Line Items]
Net sales									$ 12,339,000	$ 14,733,000	$ 16,678,000