Reportable Segments (Tables)

3 Months Ended

Mar. 31, 2013

Reportable Segments

Sales Information by Geographical Area

The following table presents sales and other financial information by reportable segment (in thousands):

Three months ended	NorthAmericaContractOperations		InternationalContractOperations		AftermarketServices		Fabrication		ReportableSegmentsTotal
March 31, 2013
Revenue from external customers	$	159,431	$	109,558	$	83,612	$	458,776	$	811,377
Gross margin(1)	87,378		63,359		18,166		56,377		225,280
March 31, 2012:
Revenue from external customers	$	150,588	$	112,786	$	89,645	$	262,222	$	615,241
Gross margin(1)	76,352		68,897		17,914		26,620		189,783

(1) Gross margin, a non-GAAP financial measure, is reconciled to net income (loss) below.

Reconciliation of net income to gross margin

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

	Three Months EndedMarch 31,
	2013			2012
Net income	$	58,791		$	7,287
Selling, general and administrative	84,979			94,839
Depreciation and amortization	82,646			85,111
Long-lived asset impairment	3,563			4,122
Restructuring charges	—			3,047
Interest expense	27,874			37,991
Equity in income of non-consolidated affiliates	(4,665		)	(37,339		)
Other (income) expense, net	(9,809		)	(6,094		)
Provision for (benefit from) income taxes	15,151			(343		)
(Income) loss from discontinued operations, net of tax	(33,250		)	1,162
Gross margin	$	225,280		$	189,783