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SEGMENT REPORTING (Tables)
 12 Months Ended
Dec. 31, 2013
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, 2013, 2012 and 2011 (in thousands). Third party revenue is revenue billed to outside customers by a particular segment. Direct revenue is the revenue allocated to the segment performing the provided service. The Company analyzes results of operations based on direct revenues because the Company believes that these revenues and related expenses best reflect the manner in which operations are managed. 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 revenues from other segments.
 
For the Year Ended December 31, 2013
 
Technical
Services
 
Oil Re-refining and Recycling

SK Environmental Services
 
Industrial
and Field Services
 
Oil and Gas Field
Services
 
Corporate
Items
 
Totals
Third party revenues
$
1,023,926

 
$
583,567

 
$
610,076

 
$
908,556

 
$
392,472

 
$
(8,941
)
 
$
3,509,656

Intersegment revenues, net
120,382

 
(246,586
)
 
160,585

 
(41,751
)
 
7,370

 
—

 
—

Corporate Items, net
3,507

 
—

 
84

 
174

 
(342
)
 
(3,423
)
 
—

Direct revenues
$
1,147,815

 
$
336,981

 
$
770,745

 
$
866,979

 
$
399,500

 
$
(12,364
)
 
$
3,509,656

 
For the Year Ended December 31, 2012
 
Technical
Services
 
Oil Re-refining and Recycling

SK Environmental Services
 
Industrial
and Field Services
 
Oil and Gas Field
Services
 
Corporate
Items
 
Totals
Third party revenues
$
957,764

 
$
—

 
$
—

 
$
828,119

 
$
400,549

 
$
1,476

 
$
2,187,908

Intersegment revenues, net
31,637

 
—

 
—

 
(40,930
)
 
9,293

 
—

 
—

Corporate Items, net
2,295

 
—

 
—

 
64

 
(489
)
 
(1,870
)
 
—

Direct revenues
$
991,696

 
$
—

 
$
—

 
$
787,253

 
$
409,353

 
$
(394
)
 
$
2,187,908

 
For the Year Ended December 31, 2011
 
Technical
Services
 
Oil Re-refining and Recycling

SK Environmental Services
 
Industrial
and Field Services (1)
 
Oil and Gas Field
Services
 
Corporate
Items
 
Totals
Third party revenues
$
910,896

 
$
—

 
$
—

 
$
731,626

 
$
340,563

 
$
1,051

 
$
1,984,136

Intersegment revenues, net
32,340

 
—

 
—

 
(35,370
)
 
3,030

 
—

 
—

Corporate Items, net
2,505

 
—

 
—

 
(363
)
 
(401
)
 
(1,741
)
 
—

Direct revenues
$
945,741

 
$
—

 
$
—

 
$
695,893

 
$
343,192

 
$
(690
)
 
$
1,984,136

_______________________________________
(1)
During the year ended December 31, 2011, third party revenues for the Industrial and Field Services segment included revenues of $43.6 million associated with the oil spill response efforts in Montana.
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, other (income) expense, and loss on early extinguishment of debt to segments.
 
For the Year Ended December 31,
 
2013
 
2012
 
2011
Adjusted EBITDA:
 
 
 
 
 
Technical Services
$
285,520

 
$
249,829

 
$
240,494

Oil Re-refining and Recycling
57,314

 
—

 
—

SK Environmental Services
112,413

 
—

 
—

Industrial and Field Services
176,952

 
158,931

 
136,380

Oil and Gas Field Services
68,063

 
77,048

 
77,870

Corporate Items
(190,157
)
 
(112,041
)
 
(104,736
)
Total
510,105

 
373,767

 
350,008

Reconciliation to Consolidated Statements of Income:
 
 
 
 
 
Pre-tax, non-cash acquisition accounting inventory adjustment
13,559

 
—

 
—

Accretion of environmental liabilities
11,541

 
9,917

 
9,680

Depreciation and amortization
264,449

 
161,646

 
122,663

Income from operations
220,556

 
202,204

 
217,665

Other (income) expense
(1,705
)
 
802

 
(6,402
)
Loss on early extinguishment of debt
—

 
26,385

 
—

Interest expense, net of interest income
78,376

 
47,287

 
39,389

Income from operations before provision (benefit) for income taxes
$
143,885

 
$
127,730

 
$
184,678
PP&E and intangible assets by segment
The following table presents assets by reported segment and in the aggregate (in thousands).
 
December 31, 2013
 
December 31, 2012
(As Adjusted)
Property, plant and equipment, net
 
 
 
Technical Services
$
400,544

 
$
405,447

Oil Re-refining and Recycling
211,513

 
178,210

SK Environmental Services
239,596

 
239,993

Industrial and Field Services
405,327

 
371,386

Oil and Gas Field Services
237,335

 
257,985

Corporate Items
107,855

 
80,032

Total property, plant and equipment, net
$
1,602,170

 
$
1,533,053

Intangible assets:
 
 
 
Technical Services
 
 
 
Goodwill
$
45,599

 
$
45,991

Permits and other intangibles, net
80,302

 
86,403

Total Technical Services
125,901

 
132,394

Oil Re-refining and Recycling
 
 
 
Goodwill
171,161

 
173,158

Permits and other intangibles, net
160,807

 
151,840

Total Oil Re-refining and Recycling Services
331,968

 
324,998

SK Environmental Services
 
 
 
Goodwill
172,308

 
174,089

Permits and other intangibles, net
265,104

 
277,460

Total SK Environmental Services
437,412

 
451,549

Industrial and Field Services
 
 
 
Goodwill
144,385

 
146,715

Permits and other intangibles, net
35,332

 
41,163

Total Industrial and Field Services
179,717

 
187,878

Oil and Gas Field Services
 
 
 
Goodwill
37,507

 
39,762

Permits and other intangibles, net
28,428

 
33,178

Total Oil and Gas Field Services
65,935

 
72,940

Total
$
1,140,933

 
$
1,169,759
Total assets by segment
The following table presents the total assets by reported segment (in thousands).
 
December 31, 2013
 
December 31, 2012
(As Adjusted)
Technical Services
$
699,675

 
$
716,309

Oil Re-Recycling and Refining
643,256

 
636,745

SK Environmental Services
774,401

 
815,446

Industrial and Field Services
634,541

 
612,664

Oil and Gas Field Services
395,805

 
348,771

Corporate Items
806,000

 
708,151

Total
$
3,953,678

 
$
3,838,086
Total assets by geographical area
The following table presents the total assets by geographical area (in thousands).
 
December 31, 2013
 
December 31, 2012
(As Adjusted)
United States
$
2,684,686

 
$
2,555,926

Canada
1,266,505

 
1,281,384

Other foreign
2,487

 
776

Total
$
3,953,678

 
$
3,838,086