REPORTABLE SEGMENTS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 segment	Mar. 31, 2011
REPORTABLE SEGMENTS
Number of business segments	4
Sales and other financial information by reportable segment
Revenue from external customers	$ 626,514	$ 618,479
Gross margin	190,847	185,175
Reconciliation net income (loss) to gross margin
Net income (loss)	7,287	(30,464)
Selling, general and administrative	96,076	91,281
Depreciation and amortization	87,308	90,478
Long-lived asset impairment	4,332
Restructuring charges	3,047
Interest expense	37,991	37,170
Equity in income of non-consolidated affiliates	(37,339)
Other (income) expense, net	(6,783)	(414)
Benefit from income taxes	(1,697)	(5,014)
Loss from discontinued operations, net of tax	625	2,138
Gross margin	190,847	185,175
North America contract operations
Sales and other financial information by reportable segment
Revenue from external customers	154,170	151,054
Gross margin	78,131	70,545
Reconciliation net income (loss) to gross margin
Gross margin	78,131	70,545
International contract operations
Sales and other financial information by reportable segment
Revenue from external customers	112,786	105,681
Gross margin	68,897	64,715
Reconciliation net income (loss) to gross margin
Gross margin	68,897	64,715
Aftermarket services
Sales and other financial information by reportable segment
Revenue from external customers	97,336	81,698
Gross margin	17,199	9,160
Reconciliation net income (loss) to gross margin
Gross margin	17,199	9,160
Fabrication
Sales and other financial information by reportable segment
Revenue from external customers	262,222	280,046
Gross margin	26,620	40,755
Reconciliation net income (loss) to gross margin
Gross margin	26,620	40,755
Reportable Segments Total
Sales and other financial information by reportable segment
Revenue from external customers	626,514	618,479
Gross margin	190,847	185,175
Reconciliation net income (loss) to gross margin
Gross margin	$ 190,847	$ 185,175