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Net Loss Per Share (Tables)
 3 Months Ended
Mar. 31, 2018
Earnings Per Share [Abstract]  
Schedule Of Net Loss Per Share Reconciliation

Quarter Ended March 31,
(in thousands, except per share amounts)
2018
 
2017
Numerator for basic and diluted net loss per share:
 
 
 
Net loss attributable to 3D Systems Corporation
$
(20,961
)
 
$
(9,971
)
 
 
 
 
Denominator for basic and diluted net loss per share:
 
 
 
Weighted average shares
111,819

 
111,289

 
 
 
 
Net loss per share - basic and diluted
$
(0.19
)
 
$
(0.09
)