PROPERTY, PLANT, AND EQUIPMENT (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,190,573	$ 2,977,904
Less - accumulated depreciation and amortization	1,603,208	1,366,077
Total property, plant and equipment, net	1,587,365	1,611,827
Interest capitalization	600	5,500	$ 2,000
Depreciation inclusive of landfill amortization	251,400	247,000	$ 234,000
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	121,658	120,575
Asset retirement costs (non-landfill)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	14,593	14,567
Landfill assets
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	144,539	139,708
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	414,384	373,160
Camp equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	170,012	152,740
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	617,959	541,022
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,644,102	1,483,736
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,708	5,492
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 57,618	$ 146,904