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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |  |
Duration of production and processing equipment fabrication project, minimum (in months) | 3 months |
Duration of production and processing equipment fabrication project, maximum (in months) | 36 months |
Summary of income (loss) attributable to Exterran stockholders |  |
Income (loss) from continuing operations attributable to Exterran stockholders | $ 6,120 | $ (27,892)
Loss from discontinued operations, net of tax | (625) | (2,138)
Net income (loss) attributable to Exterran stockholders | $ 5,495 | $ (30,030)
Potential shares of common stock that were included in computing the dilutive potential shares of common stock used in diluted income (loss) attributable to entity's stockholders per common share |  |
Weighted average common shares outstanding-used in basic income (loss) per common share | 64,515 | 62,418
Net dilutive potential common shares issuable: |  |
On exercise of options and vesting of restricted stock units (in shares) | 54 |
On settlement of employee stock purchase plan shares | 27 |
Weighted average common shares and dilutive potential common shares-used in diluted income per common share | 64,596 | 62,418
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable |  |
Net dilutive potential common shares issuable | 23,766 | 23,423
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 | 2,510 | 1,320
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 |  | 836
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 |  | 11
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 | 2,808 | 2,808
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
Interest rate (as a percent) | 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 | 3,114
Interest rate (as a percent) | 4.75% | 4.75%

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