SEGMENT REPORTING

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

SEGMENT REPORTING

SEGMENT REPORTING

Segment reporting is prepared on the same basis that the Company's chief executive officer, who is the Company's chief operating decision maker, manages its business, makes operating decisions and assesses performance. The Company's operations are managed in six operating segments: Technical Services, Industrial Services, Field Services, Safety-Kleen, Oil and Gas Field Services and Lodging Services. For purposes of segment disclosure the Industrial Services and Field Services operating segments have been aggregated into a single reportable segment based upon their similar economic and other characteristics, and the Oil and Gas Field Services and Lodging Services operating segments have been combined as they do not meet the quantitative thresholds for separate presentation.

Third-party revenue is revenue billed to outside customers by a particular segment. Direct revenue is revenue allocated to the segment providing the product or service. Intersegment revenues represent the sharing of third-party revenues among the segments based on products and services provided by each segment as if the products and services were sold directly to the third-party. The intersegment revenues are shown net. The negative intersegment revenues are due to more transfers out of customer revenues to other segments than transfers in of customer revenues from other segments. The operations not managed through the Company’s operating segments described above are recorded as “Corporate Items.” Corporate Items revenues consist of two different operations for which the revenues are insignificant. Corporate Items cost of revenues represents certain central services that are not allocated to the Company's operating segments for internal reporting purposes. Corporate Items selling, general and administrative expenses include typical corporate items such as legal, accounting and other items of a general corporate nature that are not allocated to the Company’s operating segments. 

The following table reconciles third party revenues to direct revenues for the three months ended March 31, 2017 and 2016 (in thousands):

	For the Three Months Ended March 31, 2017											For the Three Months Ended March 31, 2016
	Third party revenues		Intersegment revenues, net			Corporate Items, net			Direct revenues			Third party revenues		Intersegment revenues, net			Corporate Items, net			Direct revenues
Technical Services	$	230,218	$	40,044		$	722		$	270,984		$	219,105	$	34,844		$	388		$	254,337
Industrial and Field Services	133,557		(8,359		)	104			125,302			130,187		(6,675		)	(13		)	123,499
Safety-Kleen	292,901		(32,069		)	3			260,835			246,961		(28,521		)	366			218,806
Oil, Gas and Lodging Services	32,132		384			94			32,610			39,051		352			104			39,507
Corporate Items	133		—			(923		)	(790		)	779		—			(845		)	(66		)
Total	$	688,941	$	—		$	—		$	688,941		$	636,083	$	—		$	—		$	636,083

The primary financial measure by which the Company evaluates the performance of its segments is Adjusted EBITDA which consists of net loss plus accretion of environmental liabilities, depreciation and amortization, net interest expense, provision (benefit) for income taxes and excludes other expense, net. Transactions between the segments are accounted for at the Company’s best estimate based on similar transactions with outside customers.

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

	For the Three Months Ended
	March 31,
	2017			2016
Adjusted EBITDA:
Technical Services	$	58,488		$	60,398
Industrial and Field Services	1,913			433
Safety-Kleen	52,368			40,055
Oil, Gas and Lodging Services	(211		)	1,310
Corporate Items	(32,423		)	(34,876		)
Total	$	80,135		$	67,320
Reconciliation to Consolidated Statements of Operations:
Accretion of environmental liabilities	2,290			2,505
Depreciation and amortization	72,412			68,902
Income (loss) from operations	5,433			(4,087		)
Other expense	1,549			350
Interest expense, net of interest income	22,576			18,980
Loss before provision (benefit) for income taxes	$	(18,692	)	$	(23,417	)

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

	March 31, 2017
	Technical Services		Industrial and Field Services		Safety-Kleen		Oil, Gas and Lodging Services		Corporate Items		Totals
Property, plant and equipment, net	$	521,726	$	245,250	$	589,782	$	173,347	$	79,385	$	1,609,490
Goodwill	61,158		108,131		300,571		—		—		469,860
Permits and other intangibles, net	77,131		17,973		386,125		9,723		—		490,952
Total assets	$	856,324	$	446,757	$	1,477,851	$	246,910	$	617,811	$	3,645,653

	December 31, 2016
	Technical Services		Industrial and Field Services		Safety-Kleen		Oil, Gas and Lodging Services		Corporate Items		Totals
Property, plant and equipment, net	$	521,134	$	245,143	$	584,647	$	182,038	$	78,865	$	1,611,827
Goodwill	61,116		107,968		296,070		—		—		465,154
Permits and other intangibles, net	78,625		17,817		391,390		10,889		—		498,721
Total assets	$	862,957	$	446,826	$	1,474,755	$	253,242	$	644,140	$	3,681,920

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

	March 31, 2017		December 31, 2016
United States	$	2,947,064	$	2,960,337
Canada	698,589		721,583
Total	$	3,645,653	$	3,681,920