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Earnings per Share (Table) | 12 Months Ended
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Dec. 31, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The following table sets forth the computation of basic and diluted earnings per share:
| For the Year Ended December 31,
| 2014 |  | 2013 |  | 2012
Numerator: |  |  |  |  |
Net (loss) income attributable to PROS Holdings, Inc. | $ | (36,644 | ) |  | $ | 3,446 |  |  | $ | 4,966 |
Denominator: |  |  |  |  |
Weighted average shares (basic) | 28,915 |  |  | 28,004 |  |  | 27,366 |
Dilutive effect of stock options, restricted stock units and stock appreciation rights | — |  |  | 2,110 |  |  | 1,054 |
Weighted average shares (diluted) | 28,915 |  |  | 30,114 |  |  | 28,420 |
Basic earnings per share | $ | (1.27 | ) |  | $ | 0.12 |  |  | $ | 0.18 |
Diluted earnings per share | $ | (1.27 | ) |  | $ | 0.11 |  |  | $ | 0.17 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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