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Net Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Net Loss Per Share [Abstract]    
Net loss attributable to 3D Systems Corporation $ (9,971) $ (17,788)
Weighted average shares - denominator for basic net loss per share 111,289 112,197
Net loss per share — basic and diluted $ (0.09) $ (0.16)
Effect of dilutive securities excluded $ 5,503 $ 88