LEGAL PROCEEDINGS (Details) (Pueblo Colorado gravel operations, USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended
	Sep. 10, 2014 T	Sep. 27, 2014 T	Sep. 10, 2014
Pueblo Colorado gravel operations
Gain Contingencies [Line Items]
Royalties recoverable pending outcome of litigation	$ 1,259		$ 1,259
Sand and gravel reserves (in tons)	50,000,000
Sand and gravel tons paid for		17,700,000
Reserve on overpaid royalties		$ 0
Remaining Unmined Sand and Gravel (in tons)		32,500,000