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

Fair Value Measurement (Narrative) (Details)

v2.4.1.9
Fair Value Measurement (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Unrealized gain due to revaluation of the deferred payments in connection with acquisition $ (26,150)ssys_ChangeInFairValueOfObligationsInConnectionWithAcquisitions $ 754ssys_ChangeInFairValueOfObligationsInConnectionWithAcquisitions   
Solid Concepts Inc [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Unrealized gain due to revaluation of the deferred payments in connection with acquisition $ 7,900ssys_ChangeInFairValueOfObligationsInConnectionWithAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= ssys_SolidConceptsIncMember