Reportable Segments and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2015

Sales and other financial information by reportable segment

The following table presents sales and other financial information by reportable segment during the years ended December 31, 2015, 2014 and 2013 (in thousands):



	Contract Operations		Aftermarket Services		Reportable Segments Total		Other ⁽¹⁾		Total ⁽²⁾
2015:
Revenue from external customers	$	781,166	$	216,942	$	998,108	$	—	$	998,108
Gross margin ⁽³⁾	461,765		41,297		503,062		—		503,062
Total assets	2,248,191		149,008		2,397,199		287,944		2,685,143
Capital expenditures	227,248		2,296		229,544		26,598		256,142

2014:
Revenue from external customers	$	729,103	$	230,050	$	959,153	$	—	$	959,153
Gross margin ⁽³⁾	412,961		41,799		454,760		—		454,760
Total assets	2,446,633		62,485		2,509,118		334,516		2,843,634
Capital expenditures	371,734		825		372,559		11,282		383,841

2013:
Revenue from external customers	$	627,844	$	234,928	$	862,772	$	—	$	862,772
Gross margin ⁽³⁾	345,355		46,439		391,794		—		391,794
Total assets	1,907,097		67,693		1,974,790		238,220		2,213,010
Capital expenditures	275,408		935		276,343		15,187		291,530


⁽¹⁾	Includes corporate related items.


⁽²⁾	Totals exclude assets, capital expenditures and the operating results of discontinued operations.


⁽³⁾	Gross margin, a non-GAAP financial measure, is reconciled, in total, to net income (loss), its most directly comparable measure calculated and presented in accordance with U.S. GAAP, below.

Assets from reportable segments to total assets

The following table presents assets from reportable segments to total assets as of December 31, 2015 and 2014 (in thousands):



	December 31,
	2015		2014
Assets from reportable segments	$	2,397,199	$	2,509,118
Other assets ⁽¹⁾	287,944		334,516
Assets associated with discontinued operations	21,620		2,049,685
Consolidated assets	$	2,706,763	$	4,893,319


⁽¹⁾	Includes corporate related items.

Reconciliation of net income (loss) to gross margin

The following table reconciles net income (loss) to gross margin (in thousands):



	Years Ended December 31,
	2015			2014			2013
Net income (loss)	$	(125,697	)	$	88,661		$	126,606
Selling, general and administrative	131,919			132,651			118,851
Depreciation and amortization	229,127			212,268			187,476
Long-lived asset impairment	124,979			42,828			16,696
Restructuring charges	4,745			5,394			—
Goodwill impairment	3,738			—			—
Interest expense	107,617			112,273			112,194
Debt extinguishment costs	9,201			—			—
Other (income) expense, net	(2,079		)	(5,475		)	(22,535		)
Provision for (benefit from) income taxes	53,189			(28,066		)	(17,840		)
Income from discontinued operations, net of tax	(33,677		)	(105,774		)	(129,654		)
Gross margin	$	503,062		$	454,760		$	391,794