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v2.4.0.8

Segment Information (Schedule Of Intercompany Sales By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Segment Reporting Information [Line Items] |  |
Intercompany Sales | $ 33,541 | $ 17,671
United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 18,230 | 10,511
Germany [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 1,887 | 1,677
Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 12,260 | 4,323
Asia Pacific [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 1,164 | 1,160
Intercompany Sales To United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 10,934 | 4,774
Intercompany Sales To United States [Member] | Germany [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 409 | 318
Intercompany Sales To United States [Member] | Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 10,043 | 3,931
Intercompany Sales To United States [Member] | Asia Pacific [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 482 | 525
Intercompany Sales To Germany [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 12,267 | 6,446
Intercompany Sales To Germany [Member] | United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 10,937 | 5,783
Intercompany Sales To Germany [Member] | Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 1,330 | 283
Intercompany Sales To Germany [Member] | Asia Pacific [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales |  | 380
Intercompany Sales To Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 6,757 | 5,041
Intercompany Sales To Other Europe [Member] | United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 4,947 | 3,604
Intercompany Sales To Other Europe [Member] | Germany [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 1,478 | 1,359
Intercompany Sales To Other Europe [Member] | Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 332 | 78
Intercompany Sales To Asia Pacific [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 3,583 | 1,410
Intercompany Sales To Asia Pacific [Member] | United States [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 2,346 | 1,124
Intercompany Sales To Asia Pacific [Member] | Other Europe [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | 555 | 31
Intercompany Sales To Asia Pacific [Member] | Asia Pacific [Member] |  |
Segment Reporting Information [Line Items] |  |
Intercompany Sales | $ 682 | $ 255

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- Definition Intercompany sales. + References No definition available. + Details
Name: | ddd_IntercompanySales
Namespace Prefix: | ddd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration