Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Acquisitions and Other Business Activities (Summary of Intangible Assets Acquired) (Details)

v3.3.1.900
Acquisitions and Other Business Activities (Summary of Intangible Assets Acquired) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 15, 2013
Dec. 31, 2015
MakerBot [Member]    
Total intangible assets, amount $ 168,386  
Solid Concepts Inc [Member]    
Intangible assets, Weighted Average Life   6 years 7 months 6 days
Developed Technology [Member] | MakerBot [Member]    
Intangible assets, Weighted Average Life 5 years  
Total intangible assets, amount $ 43,227  
Trade name [Member] | MakerBot [Member]    
Intangible assets, Weighted Average Life 11 years  
Total intangible assets, amount $ 42,134  
Customer relationships - Distributors [Member] | MakerBot [Member]    
Intangible assets, Weighted Average Life 10 years  
Total intangible assets, amount $ 19,315  
Customer relationships - Direct [Member] | MakerBot [Member]    
Intangible assets, Weighted Average Life 1 year  
Total intangible assets, amount $ 3,435  
Customer relationships - Direct [Member] | Solid Concepts Inc [Member]    
Intangible assets, Weighted Average Life   6 years
Non-compete Agreement [Member] | MakerBot [Member]    
Intangible assets, Weighted Average Life 4 years  
Total intangible assets, amount $ 10,004  
IPR&D - Printers [Member] | MakerBot [Member]    
Total intangible assets, amount 34,189  
Weighted Average Life - Years  
Indefinite
IPR&D - Peripherals [Member] | MakerBot [Member]    
Total intangible assets, amount $ 16,082  
Weighted Average Life - Years  
Indefinite