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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2012
4.75% convertible senior notes due January 2014
Dec. 31, 2011
4.75% convertible senior notes due January 2014
Mar. 31, 2012
Parent
Mar. 31, 2011
Parent
Mar. 31, 2012
Subsidiary Issuer
Mar. 31, 2011
Subsidiary Issuer
Mar. 31, 2011
Correction of Misclassification in the Statement of Cash Flows
As previously reported
Mar. 31, 2011
Correction of Misclassification in the Statement of Cash Flows
Increase (decrease)
Mar. 31, 2011
Correction of Misclassification in the Supplemental Guarantor Financial Information Footnote
As previously reported
Parent
Mar. 31, 2011
Correction of Misclassification in the Supplemental Guarantor Financial Information Footnote
As previously reported
Subsidiary Issuer
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES                        
Net proceeds from the sale of common units of Exterran Partners, L.P. $ 114,568 $ 162,236                    
Correction of Misclassifications                        
Net cash provided by (used in) continuing operating activities 38,591 26,114     1,863 2,063 31 (68)     463,138 334
Net cash provided by (used in) continuing investing activities (69,444) (23,609)       53,966   87,419 138,627 (162,236) (144,883) 13,330
Net cash provided by (used in) financing activities $ 32,130 $ (7,972)     $ (1,685) $ (56,156) $ (31) $ (87,351) $ (170,208) $ 162,236 $ (318,382) $ (13,664)
Interest rate (as a percent)     4.75% 4.75%