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Basis of Presentation and Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) shares in Thousands | 3 Months Ended | 9 Months Ended |
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Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Jun. 30, 2009
Summary of net income attributable to Exterran common stockholders used in the calculation of basic and diluted income per common share |  |  |  |  |
Income (loss) from continuing operations attributable to Exterran stockholders | $ (25,080,000) | $ 16,047,000 | $ (13,294,000) | $ 24,524,000 |
Income from discontinued operations, net of tax | 18,776,000 | 18,003,000 | 37,743,000 | 54,499,000 |
Less: Net income attributable to participating securities | (141,000) | (448,000) | (384,000) | (1,157,000) |
Net income (loss) attributable to Exterran common stockholders | $ (6,445,000) | $ 33,602,000 | $ 24,065,000 | $ 77,866,000 |
Potential shares of common stock included in computing diluted income attributable to Exterran common stockholders per common share |  |  |  |  |
Weighted average common shares outstanding including participating securities (in shares) | 69,530 | 67,347 | 69,403 | 66,820 |
Less: Weighted average participating securities outstanding (in shares) | (970) | (915) | (962) | (959) |
Weighted average common shares outstanding — used in basic income (loss) per common share (in shares) | 68,560 | 66,432 | 68,441 | 65,861 |
Net dilutive potential common shares issuable: |  |  |  |  |
On exercise of options and vesting of restricted stock units (in shares) |  | 468 |  | 527 |
On exercise of warrants (in shares) |  | 3,506 | 0 | 2,929 |
Weighted average common shares outstanding - used in diluted income (loss) per common share (in shares) | 68,560 | 70,406 | 68,441 | 69,317 |
Adjustments to net income (loss) attributable to Exterran common stockholders for the diluted earnings (loss) per common share calculation | $ 0 | $ 0 | $ 0 | $ 0 |
4.25% convertible senior notes due June 2014 |  |  |  |  |
Net dilutive potential common shares issuable: |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 4.25%

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