SEGMENT REPORTING (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Reconciliation of third party revenues to direct revenues

The following table reconciles third party revenues to direct revenues for the three months ended March 31, 2018 and 2017 (in thousands):

	For the Three Months Ended March 31, 2018											For the Three Months Ended March 31, 2017
	Third party revenues		Intersegment revenues, net			Corporate Items, net			Direct revenues			Third party revenues		Intersegment revenues, net			Corporate Items, net			Direct revenues
Environmental Services	$	439,688	$	31,965		$	794		$	472,447		$	395,907	$	32,069		$	920		$	428,896
Safety-Kleen	309,918		(31,965		)	11			277,964			292,901		(32,069		)	3			260,835
Corporate Items	172		—			(805		)	(633		)	133		—			(923		)	(790		)
Total	$	749,778	$	—		$	—		$	749,778		$	688,941	$	—		$	—		$	688,941

Reconciliation to consolidated statements of income from adjusted EBITDA

The following table presents Adjusted EBITDA information used by management by reported segment (in thousands):

	For the Three Months Ended
	March 31,
	2018			2017
Adjusted EBITDA:
Environmental Services	$	61,417		$	60,190
Safety-Kleen	61,884			52,368
Corporate Items	(35,036		)	(32,423		)
Total	$	88,265		$	80,135
Reconciliation to Consolidated Statements of Operations:
Accretion of environmental liabilities	2,430			2,290
Depreciation and amortization	74,844			72,412
Income from operations	10,991			5,433
Other expense, net	299			1,549
Interest expense, net of interest income	20,270			22,576
Loss before provision for income taxes	$	(9,578	)	$	(18,692	)

PP&E, intangible assets and total assets by segment

The following table presents certain assets by reportable segment and in the aggregate (in thousands):

	March 31, 2018
	Environmental Services		Safety-Kleen		Corporate Items		Totals
Property, plant and equipment, net	$	998,340	$	553,308	$	80,000	$	1,631,648
Goodwill	187,490		305,215		—		492,705
Permits and other intangibles, net	99,401		365,234		—		464,635
Total assets	$	1,685,168	$	1,437,026	$	562,622	$	3,684,816

	December 31, 2017
	Environmental Services		Safety-Kleen		Corporate Items		Totals
Property, plant and equipment, net	$	927,139	$	582,162	$	78,064	$	1,587,365
Goodwill	172,386		306,137		—		478,523
Permits and other intangibles, net	97,519		371,609		—		469,128
Total assets	$	1,541,241	$	1,471,291	$	694,038	$	3,706,570

Total assets by geographical area

The following table presents total assets by geographical area (in thousands):

	March 31, 2018		December 31, 2017
United States	$	3,002,779	$	2,985,394
Canada	681,901		721,176
Other foreign	136		—
Total	$	3,684,816	$	3,706,570