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Earnings (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings (Loss) Per Share, Basic And Diluted [Abstract] |
Schedule Of Earnings Per Share Reconciliation |
| Quarter Ended September 30, |  | Nine Months Ended September 30,
(in thousands, except per share amounts) | 2015 |  | 2014 |  | 2015 |  | 2014
Numerator for basic and diluted net earnings per share: |  |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to 3D Systems Corporation | $ | (32,249) |  | $ | 3,084 |  | $ | (59,126) |  | $ | 10,086
Denominator for basic and diluted net earnings per share: |  |  |  |  |  |  |  |  |  |  |
Weighted average shares |  | 112,010 |  |  | 110,737 |  |  | 111,920 |  |  | 106,923
Earnings (loss) per share, basic and diluted | $ | (0.29) |  | $ | 0.03 |  | $ | (0.53) |  | $ | 0.09
Interest expense excluded from diluted earnings per share calculation (a) | $ | — |  | $ | — |  | $ | — |  | $ | 362
5.50% Convertible notes shares excluded from diluted earnings per share calculation (a) |  | — |  |  | — |  |  | — |  |  | 584
Restricted stock units excluded from diluted earnings per share calculation (b) |  | 109 |  |  | — |  |  | 61 |  |  | —
| (a) |  | Average outstanding diluted earnings (loss) per share calculation excludes shares that may be issued upon conversion of the outstanding senior convertible notes since the effect of their inclusion would have been anti-dilutive.
| (b) |  | Average outstanding diluted earnings (loss) per share calculation excludes restricted stock units since the effect of their inclusion would have been anti-dilutive.

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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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