DEFERRED REVENUE (Narrative) (Details) (USD $)	1 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2012 T	Sep. 30, 2014 agreement property T	Sep. 30, 2013	Dec. 31, 2013 T	Dec. 31, 2013 Maximum T	Dec. 31, 2012 Maximum T	Mar. 31, 2015 Scenario, Forecast [Member] Minimum	Mar. 31, 2015 Scenario, Forecast [Member] Maximum
Deferred Revenue Arrangement [Line Items]
Number of volumetric production payment transactions		2
Number of facilities		8
Owned quarries		7
Leased quarries		1
Proceeds from sale of future production, net of transactions costs (Note 16)	$ 73,644,000	$ 0	$ 153,095,000	$ 153,282,000
Volumetric production payment termination date	Dec. 31, 2052			Sep. 30, 2051
Tons subject to volumetric production payment					250,800,000	143,200,000
Volumetric production payment estimated percentage sold	10.50%			11.50%
Volumetric production payment estimated tons to be delivered	15,000,000			29,000,000
Balance of deferred revenue related to VPP transactions		221,205,000
Estimated deferred revenue to be recognized in the next 12 months							$ 5,100,000	$ 6,100,000