PROPERTY, PLANT AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2014

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment consisted of the following (in thousands):

	June 30, 2014		December 31, 2013
Land	$	100,194	$	99,794
Asset retirement costs (non-landfill)	10,936		10,938
Landfill assets	105,569		100,983
Buildings and improvements	333,930		327,956
Camp equipment	186,622		187,831
Vehicles	459,594		425,296
Equipment	1,272,036		1,201,296
Furniture and fixtures	5,471		5,260
Construction in progress	64,259		58,010
	2,538,611		2,417,364
Less - accumulated depreciation and amortization	927,313		815,194
Total property, plant and equipment, net	$	1,611,298	$	1,602,170