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Earnings Per Share (Schedule Of Earnings Per Share Reconciliation) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Nov. 30, 2011
Earnings Per Share, Basic And Diluted [Abstract]      
Net income attributable to 3D Systems - numerator for basic net earnings per share $ 4,877 $ 5,883  
Numerator for dilutive earnings per share 4,877 5,883  
Weighted average shares - denominator for basic net earnings per share 103,546 91,822  
Denominator for dilutive net earnings per share 103,546 91,822  
Earnings per share, basic and diluted $ 0.05 $ 0.06  
Interest expense excluded from diluted earnings per share calculation $ 156 [1] $ 977 [1]  
5.5% Convertible notes shares excluded from diluted earnings per share calculation 876 [1] 3,379 [1]  
Interest rate     5.50%
[1] Average outstanding diluted earnings 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.