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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, 2013 | Mar. 31, 2012
Summary of income (loss) attributable to Exterran stockholders |  |
Income from continuing operations attributable to Exterran stockholders | $ 16,955 | $ 6,657
Income (loss) from discontinued operations, net of tax | 33,250 | (1,162)
Net income attributable to Exterran stockholders | 50,205 | 5,495
Potential shares of common stock included in computing diluted income (loss) attributable to Exterran stockholders per common share |  |
Weighted average common shares outstanding - used in basic income (loss) per common share | 65,291 | 64,515
Net dilutive potential common shares issuable: |  |
On exercise of options and vesting of restricted stock units (in shares) | 517 | 54
On settlement of employee stock purchase plan shares (in shares) | 2 | 27
Weighted average common shares outstanding - used in diluted income (loss) per common share | 65,810 | 64,596
Adjustments to net income (loss) attributable to Exterran stockholders for the diluted earnings (loss) per share calculation | $ 0 | $ 0
Anti-dilutive effect of the calculation of net dilutive potential shares of common stock issuable |  |
Net dilutive potential common shares issuable | 29,170 | 33,384
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 | 926 | 2,510
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 | 12,426 | 12,426
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 | 484 | 3,114
Interest rate (as a percent) | 4.75% | 4.75%

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