Reportable Segments (Tables)

3 Months Ended

Mar. 31, 2014

Revenue and other financial information by reportable segment

The following table presents revenue and other financial information by reportable segment during the three months ended March 31, 2014 and 2013 (in thousands):

Three months ended	North America Contract Operations		International Contract Operations		Aftermarket Services		Fabrication		Reportable Segments Total
March 31, 2014
Revenue from external customers	$	156,523	$	111,040	$	88,048	$	287,397	$	643,008
Gross margin(1)	85,442		70,008		20,227		57,809		233,486

March 31, 2013:
Revenue from external customers	$	157,950	$	109,558	$	83,612	$	458,776	$	809,896
Gross margin(1)	86,840		63,359		18,166		56,377		224,742

(1) 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 GAAP, below.

Reconciliation of net income to gross margin

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

	Three Months Ended March 31,
	2014			2013
Net income	$	34,894		$	58,791
Selling, general and administrative	92,578			84,874
Depreciation and amortization	85,522			82,646
Long-lived asset impairment	3,807			3,563
Restructuring Charges	4,822			—
Interest expense	28,308			27,874
Equity in income of non-consolidated affiliates	(4,693		)	(4,665		)
Other (income) expense, net	(2,434		)	(9,808		)
Provision for income taxes	9,409			14,983
Income from discontinued operations, net of tax	(18,727		)	(33,516		)
Gross margin	$	233,486		$	224,742