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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Summary of income (loss) attributable to Exterran stockholders        
Loss from continuing operations attributable to Exterran stockholders $ (109,717) $ (24,950) $ (103,060) $ (52,045)
Loss from discontinued operations, net of tax (42,891) (3,076) (44,053) (6,011)
Net loss attributable to Exterran stockholders $ (152,608) $ (28,026) $ (147,113) $ (58,056)
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 36,099 35,267 35,588 34,959
On exercise of options where exercise price is greater than average market value for the period
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 2,272 2,333 2,391 1,826
On exercise of options and vesting of restricted stock and restricted stock units
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 1,341 433 698 634
On settlement of employee stock purchase plan shares
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable   14 13 12
On exercise of warrants
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 14,038 14,038 14,038 14,038
On conversion of 4.25% convertible senior notes due 2014
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 15,334 15,334 15,334 15,334
Interest rate (as a percent) 4.25% 4.25% 4.25% 4.25%
On conversion of 4.75% convertible senior notes due 2014
        
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable        
Net dilutive potential common shares issuable 3,114 3,115 3,114 3,115
Interest rate (as a percent) 4.75% 4.75% 4.75% 4.75%