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Computation Of Net Loss Per Share | 12 Months Ended
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Dec. 31, 2017
Computation Of Net Loss Per Share [Abstract] |
Computation Of Net Loss Per Share | Note 16 Computation of Net Loss per Share ﻿ The Company computes basic loss per share using net loss attributable to 3D Systems Corporation and the weighted average number of common shares outstanding during the applicable period. Diluted loss per share incorporates the additional shares issuable upon assumed exercise of stock options and the release of restricted stock and RSUs, except in such case when their inclusion would be anti-dilutive. ﻿ ﻿
﻿ |  |  |  |  |  |  |  |
﻿(in thousands, except per share amounts) | 2017 |  | 2016 |  | 2015
﻿Numerator for basic and diluted net loss per share: |  |  |  |  |  |  |  |
﻿Net loss attributable to 3D Systems Corporation | $ | (66,191) |  | $ | (38,419) |  | $ | (655,492)
﻿ |  |  |  |  |  |  |  |
﻿Denominator for basic and diluted net loss per share: |  |  |  |  |  |  |  |
﻿Weighted average shares |  | 111,554 |  |  | 111,189 |  |  | 111,969
﻿ |  |  |  |  |  |  |  |
﻿Net loss per share, basic and diluted | $ | (0.59) |  | $ | (0.35) |  | $ | (5.85)
﻿ For the years ended December 31, 2017, 2016 and 2015, the effect of dilutive securities, including non-vested stock options, restricted stock awards and RSUs, was excluded from the denominator for the calculation of diluted net loss per share because the Company recognized a net loss for the period and their inclusion would be anti-dilutive. Dilutive securities excluded were 5,341, 5,284 and 1,117 for the years ended December 31, 2017, 2016 and 2015, respectively.

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