SEGMENT REPORTING (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Reconciliation of Third Party Revenues to Direct Revenues

The following table reconciles third party revenues to direct revenues for the years ended December 31, 2014, 2013 and 2012 (in thousands).

	For the Year Ended December 31, 2014
	Technical Services		Industrial and Field Services			Oil Re-refining and Recycling			SK Environmental Services			Lodging Services		Oil and Gas Field Services			Corporate Items			Totals
Third party revenues	$	1,043,267	$	681,779		$	533,587		$	667,320		$	172,218	$	303,189		$	276		$	3,401,636
Intersegment revenues, net	156,543		(42,681		)	(201,859		)	80,477			2,434		5,086			—			—
Corporate Items, net	5,573		271			(5		)	(58		)	80		(5		)	(5,856		)	—
Direct revenues	$	1,205,383	$	639,369		$	331,723		$	747,739		$	174,732	$	308,270		$	(5,580	)	$	3,401,636

	For the Year Ended December 31, 2013
	Technical Services		Industrial and Field Services			Oil Re-refining and Recycling			SK Environmental Services		Lodging Services		Oil and Gas Field Services			Corporate Items			Totals
Third party revenues	$	1,023,926	$	708,523		$	528,636		$	665,008	$	208,545	$	383,959		$	(8,941	)	$	3,509,656
Intersegment revenues, net	120,382		(44,717		)	(193,009		)	107,007		3,450		6,887			—			—
Corporate Items, net	3,507		(217		)	—			84		390		(341		)	(3,423		)	—
Direct revenues	$	1,147,815	$	663,589		$	335,627		$	772,099	$	212,385	$	390,505		$	(12,364	)	$	3,509,656

	For the Year Ended December 31, 2012
	Technical Services		Industrial and Field Services			Oil Re-refining and Recycling		SK Environmental Services		Lodging Services		Oil and Gas Field Services			Corporate Items			Totals
Third party revenues	$	957,764	$	634,254		$	—	$	—	$	199,497	$	394,917		$	1,476		$	2,187,908
Intersegment revenues, net	31,637		(43,795		)	—		—		2,971		9,187			—			—
Corporate Items, net	2,295		(1		)	—		—		65		(489		)	(1,870		)	—
Direct revenues	$	991,696	$	590,458		$	—	$	—	$	202,533	$	403,615		$	(394	)	$	2,187,908

Reconciliation to Consolidated Statements of Income to Adjusted EBITDA

The following table presents information used by management by reported segment (in thousands). The Company does not allocate interest expense, income taxes, depreciation, amortization, accretion of environmental liabilities, goodwill impairment charge, other (income) expense, and loss on early extinguishment of debt to segments.

	For the Year Ended December 31,
	2014			2013			2012
Adjusted EBITDA:
Technical Services	$	328,130		$	285,520		$	249,829
Industrial and Field Services	87,591			96,804			82,819
Oil Re-refining and Recycling	51,561			57,003			—
SK Environmental Services	113,986			112,722			—
Lodging Services	61,438			80,358			76,092
Oil and Gas Field Services	40,114			67,855			77,068
Corporate Items	(160,901		)	(190,157		)	(112,041		)
Total	521,919			510,105			373,767
Reconciliation to Consolidated Statements of (Loss) Income:
Pre-tax, non-cash acquisition accounting inventory adjustment	—			13,559			—
Accretion of environmental liabilities	10,612			11,541			9,917
Depreciation and amortization	276,083			264,449			161,646
Goodwill impairment charge	123,414			—			—
Income from operations	111,810			220,556			202,204
Other (income) expense	(4,380		)	(1,705		)	802
Loss on early extinguishment of debt	—			—			26,385
Interest expense, net of interest income	77,668			78,376			47,287
Income from operations before provision (benefit) for income taxes	$	38,522		$	143,885		$	127,730

PP&E and Intangible Assets by Segment

The following table presents assets by reported segment and in the aggregate (in thousands).

	December 31, 2014		December 31, 2013
Property, plant and equipment, net
Technical Services	$	412,323	$	400,544
Industrial and Field Services	245,115		251,826
Oil Re-refining and Recycling	201,451		211,458
SK Environmental Services	240,078		239,650
Lodging Services	141,965		166,252
Oil and Gas Field Services	215,574		224,585
Corporate Items	102,328		107,855
Total property, plant and equipment, net	$	1,558,834	$	1,602,170
Intangible assets:
Technical Services
Goodwill	$	50,092	$	45,599
Permits and other intangibles, net	74,870		80,302
Total Technical Services	124,962		125,901
Industrial and Field Services
Goodwill	109,214		109,873
Permits and other intangibles, net	17,801		21,147
Total Industrial and Field Services	127,015		131,020
Oil Re-refining and Recycling
Goodwill	50,883		171,161
Permits and other intangibles, net	151,041		160,807
Total Oil Re-refining and Recycling Services	201,924		331,968
SK Environmental Services
Goodwill	173,873		172,309
Permits and other intangibles, net	252,897		265,106
Total SK Environmental Services	426,770		437,415
Lodging Services
Goodwill	34,863		35,512
Permits and other intangibles, net	10,744		14,730
Total Lodging Services	45,607		50,242
Oil and Gas Field Services
Goodwill	33,744		36,506
Permits and other intangibles, net	22,727		27,881
Total Oil and Gas Field Services	56,471		64,387
Total	$	982,749	$	1,140,933

Total Assets by Segment

The following table presents the total assets by reported segment (in thousands).

	December 31, 2014		December 31, 2013
Technical Services	$	756,169	$	699,675
Industrial and Field Services	392,652		410,233
Oil Re-Recycling and Refining	538,921		642,901
SK Environmental Services	731,072		774,756
Lodging Services	231,782		239,056
Oil and Gas Field Services	361,223		381,057
Corporate Items	692,459		806,000
Total	$	3,704,278	$	3,953,678

Total Assets by Geographical Area

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

	December 31, 2014		December 31, 2013
United States	$	2,572,494	$	2,684,686
Canada	1,128,458		1,266,505
Other foreign	3,326		2,487
Total	$	3,704,278	$	3,953,678