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

Fair Value Measurements (Narrative) (Details)

v2.4.1.9
Fair Value Measurements (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
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 $ (13,256)ssys_ChangeInFairValueOfObligationsInConnectionWithAcquisitions $ (7,495)ssys_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 $ 13,300ssys_ChangeInFairValueOfObligationsInConnectionWithAcquisitions
/ us-gaap_BusinessAcquisitionAxis
= ssys_SolidConceptsIncMember