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Computation Of Net Income Per Share (Schedule Of Net Income Per Share Reconciliation) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Earnings (Loss) Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                              
Net income (loss) attributable to 3D Systems Corporation                         $ (655,492) $ 11,637 $ 44,107
Weighted average shares                         111,969 108,023 98,393
Earnings (loss) per share, basic and diluted $ (5.32) $ (0.29) $ (0.12) $ (0.12) $ 0.01 $ 0.03 $ 0.02 $ 0.05 $ 0.11 $ 0.17 $ 0.10 $ 0.06 $ (5.85) $ 0.11 $ 0.45
5.50% Convertible Notes [Member]                              
Earnings (Loss) Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                              
Anti-dilutive securities excluded from diluted earnings per share [1]                             1,764
Restricted Stock Units [Member]                              
Earnings (Loss) Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                              
Anti-dilutive securities excluded from diluted earnings per share [2]                         270    
Interest Expense [Member]                              
Earnings (Loss) Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                              
Anti-dilutive securities excluded from diluted earnings per share [1]                             1,835
Senior Convertible Notes [Member]                              
Earnings (Loss) Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]                              
Interest rate         5.50%       5.50%         5.50% 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
[2] Average outstanding diluted earnings (loss) per share calculation excludes restricted stock units since the effect of their inclusion would have been anti-dilutive.