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REPORTABLE SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 segment	Sep. 30, 2011
REPORTABLE SEGMENTS
Number of business segments			4
Sales and other financial information by reportable segment
Revenue from external customers	$ 718,704	$ 689,820	$ 1,964,680	$ 1,940,816
Gross margin	210,680	186,653	594,797	543,771
Reconciliation net loss to gross margin
Net income (loss)	119,346	(214,547)	(40,265)	(275,235)
Selling, general and administrative	85,536	89,257	274,509	269,132
Depreciation and amortization	85,248	88,762	259,268	267,373
Long-lived asset impairment	3,204	1,823	135,869	3,886
Restructuring charges	1,515	2,941	5,828	2,941
Goodwill impairment		196,142		196,142
Interest expense	31,723	38,672	106,682	110,428
Equity in (income) loss of non-consolidated affiliates	(4,793)	262	(46,860)	262
Other (income) expense, net	(1,450)	12,745	1,207	9,815
Provision for (benefit from) income taxes	1,267	(32,640)	(34,578)	(50,220)
(Income) loss from discontinued operations, net of tax	(110,916)	3,236	(66,863)	9,247
Gross margin	210,680	186,653	594,797	543,771
North America contract operations
Sales and other financial information by reportable segment
Revenue from external customers	151,532	147,737	450,684	441,171
Gross margin	76,315	71,858	230,808	213,098
Reconciliation net loss to gross margin
Gross margin	76,315	71,858	230,808	213,098
International contract operations
Sales and other financial information by reportable segment
Revenue from external customers	110,632	113,759	336,046	330,384
Gross margin	64,372	65,532	198,805	191,425
Reconciliation net loss to gross margin
Gross margin	64,372	65,532	198,805	191,425
Aftermarket services
Sales and other financial information by reportable segment
Revenue from external customers	95,854	95,673	287,401	254,833
Gross margin	20,061	19,871	62,349	36,722
Reconciliation net loss to gross margin
Goodwill impairment				62,852
Gross margin	20,061	19,871	62,349	36,722
Fabrication
Sales and other financial information by reportable segment
Revenue from external customers	360,686	332,651	890,549	914,428
Gross margin	49,932	29,392	102,835	102,526
Reconciliation net loss to gross margin
Goodwill impairment				133,290
Gross margin	49,932	29,392	102,835	102,526
Reportable Segments Total
Sales and other financial information by reportable segment
Revenue from external customers	718,704	689,820	1,964,680	1,940,816
Gross margin	210,680	186,653	594,797	543,771
Reconciliation net loss to gross margin
Gross margin	$ 210,680	$ 186,653	$ 594,797	$ 543,771

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