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

Acquisitions and Other Business Activities (Schedule of Assumptions Applied in Merger) (Details)

v3.3.1.900
Acquisitions and Other Business Activities (Schedule of Assumptions Applied in Merger) (Details) - MakerBot [Member]
Aug. 15, 2013
$ / shares
Business Acquisition [Line Items]  
Risk-free interest rate 0.36%
Expected option term 1 year 4 months 17 days
Expected price volatility 59.41%
Dividend yield
Weighted average merger date fair value $ 92.73