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

Goodwill and Other Intangible Assets (Narrative) (Details)

v2.4.1.9
Goodwill and Other Intangible Assets (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Finite-lived intangible assets, gross $ 766,618,000us-gaap_FiniteLivedIntangibleAssetsGross $ 712,569,000us-gaap_FiniteLivedIntangibleAssetsGross  
Impairment charges related to Digitizer desktop 3D scanner 14,600,000us-gaap_AssetImpairmentCharges    
Amortization of intangible assets 81,900,000us-gaap_AmortizationOfIntangibleAssets 61,300,000us-gaap_AmortizationOfIntangibleAssets 8,100,000us-gaap_AmortizationOfIntangibleAssets
Research and development, developed technology [Member]      
Finite-lived intangible assets, gross   49,500,000us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
 
Objet Ltd [Member] | Research and development, developed technology [Member]      
Finite-lived intangible assets, gross   24,700,000us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_BusinessAcquisitionAxis
= ssys_ObjetLtdMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ResearchAndDevelopmentArrangementMember
 
MakerBot [Member] | Research and development, developed technology [Member]      
Finite-lived intangible assets, gross   $ 23,700,000us-gaap_FiniteLivedIntangibleAssetsGross
/ us-gaap_BusinessAcquisitionAxis
= ssys_MakerbotMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ResearchAndDevelopmentArrangementMember