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Loss Per Share (Tables) | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Schedule of Loss Per Share, Basic and Diluted | The following sets forth basic and diluted loss per common share available to IPG common stockholders.
| Three months ended March 31,
| 2015 |  | 2014
Net loss available to IPG common stockholders - basic and diluted | $ | (1.8 | ) |  | $ | (20.9 | )
Weighted-average number of common shares outstanding - basic and diluted | 411.1 |  |  | 422.8 |
Loss per share available to IPG common stockholders - basic and diluted | $ | 0.00 |  |  | $ | (0.05 | )
Schedule of Antidilutive Securities Excluded from Computation of Loss Per Share | The following table presents the potential shares excluded from the diluted loss per share calculation because the effect of including these potential shares would be antidilutive.
| Three months ended March 31,
| 2015 |  | 2014
Restricted stock, stock options and other equity awards | 6.3 |  |  | 6.8 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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