Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Acquisitions and Other Business Activities (Schedule of Solid Concepts transaction) (Details)

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Acquisitions and Other Business Activities (Schedule of Solid Concepts transaction) (Details) - USD ($)
$ in Thousands
9 Months Ended
Jul. 14, 2014
Sep. 30, 2015
Sep. 30, 2014
Acquisitions and Other Business Activities [Line Items]      
Cash paid upon closing   $ 10,414 $ 148,207
Total fair value of consideration transferred   $ 10,414 $ 329,217
Solid Concepts Inc [Member]      
Acquisitions and Other Business Activities [Line Items]      
Issuance of ordinary shares $ 97,869    
Cash paid upon closing 40,130    
Holdback amount 3,839    
Deferred payments 43,576    
Total fair value of consideration transferred $ 185,414