PROPERTY, PLANT AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

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

	June 30, 2019		December 31, 2018
Land	$	134,306	$	123,734
Asset retirement costs (non-landfill)	15,358		15,148
Landfill assets	164,816		154,918
Buildings and improvements (1)	472,383		440,188
Camp equipment	158,992		152,998
Vehicles	777,968		721,735
Equipment	1,732,020		1,697,490
Furniture and fixtures	5,511		5,453
Construction in progress	34,949		20,931
	3,496,303		3,332,595
Less - accumulated depreciation and amortization	1,899,386		1,770,617
Total property, plant and equipment, net	$	1,596,917	$	1,561,978

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(1) Inclusive of finance lease.