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

Commitments and Contingencies (Narrative) (Details)

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Commitments and Contingencies (Narrative) (Details) - USD ($)
$ in Thousands
 1 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Rent expense     $ 8,200 $ 10,000 $ 14,000
Patent law-based claim     (a) 20% of the benefits, revenues and /or savings generated by the Company in the past and in the future, including the rise in the value of the Company, as determined in the merger with Stratasys Inc., which took place in December 2012; (b) 20% of the gross profit generated by the Company in the past and 9% of the gross profit produced and that will be produced by the Company; (c) 20% of the gross profit generated by the Company in the past and the relative share of the former Objet entity of the Company in the total gross profit produced and that will be produced by the Company; or (d) 20% of the value of the service inventions at issue. The former employee further sought an order of accounts. The Company rejects the claims that serve as a basis for the proceeding and is defending against them vigorously.    
Purchase of property and equipment     $ 23,361 $ 22,308 $ 45,125
Bank Loan [Member]          
Proceeds from secured debt   $ 26,000      
Maturity date   Dec. 31, 2023      
Interest rate     3.35%    
Proceeds from lines of credit $ 10,000        
Credit Line [Member]          
Proceeds from secured debt   $ 24,000