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

Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details)

v2.4.1.9
Nature of Operations and Summary of Significant Accounting Policies (Narrative) (Details) (USD $)
 12 Months Ended 3 Months Ended
Dec. 31, 2014
item
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2014
Number of operating segments 1us-gaap_NumberOfOperatingSegments      
Accounts Receivable and Net investment in sales-type leases        
Allowance for doubtful accounts receivable $ 1,025,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 1,804,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent   $ 1,025,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Allowance for doubtful accounts due to investment in sales-type leases 452,000us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments 183,000us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments   452,000us-gaap_CapitalLeasesNetInvestmentInSalesTypeLeasesAllowanceForUncollectibleMinimumLeasePayments
Inventories        
Inventory write-downs for obsolescence and excess inventories 5,370,000us-gaap_InventoryAdjustments 3,515,000us-gaap_InventoryAdjustments   5,370,000us-gaap_InventoryAdjustments
Goodwill        
Goodwill 1,323,502,000us-gaap_Goodwill 1,195,891,000us-gaap_Goodwill 822,500,000us-gaap_Goodwill 1,323,502,000us-gaap_Goodwill
Goodwill impairment 102,470,000us-gaap_GoodwillImpairmentLoss        
Other Intangible Assets        
Advertising costs 23,500,000us-gaap_AdvertisingExpense 13,500,000us-gaap_AdvertisingExpense 4,800,000us-gaap_AdvertisingExpense  
Research and Development Costs        
Number of manufacturing companies to jointly advance of proprietary technology agreements 3ssys_NumberOfManufacturingEntitiesWhoseAgreementsOfProprietaryTechnology      
Research and development, net 4,600,000ssys_ResearchAndDevelopmentExpenseOffsetByPaymentReceived 3,600,000ssys_ResearchAndDevelopmentExpenseOffsetByPaymentReceived 3,200,000ssys_ResearchAndDevelopmentExpenseOffsetByPaymentReceived  
Maximum additional tax rate on distribution of dividends 10.00%ssys_MaximumAdditionalTaxRateOnDistributionOfDividends      
Settlement percentage 50.00%ssys_TaxContingenciesSettlementPercentage      
Stock-Based Compensation        
Expected dividend rate (as a percent) 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate       
Business Combinations        
Maximum measurement period of revision of consideration transferred 1 year      
IPR&D - Printers [Member]        
Other Intangible Assets        
Impairment charges 3,000,000us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
/ us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_InProcessResearchAndDevelopmentMember 		     
Developed Technology [Member]        
Other Intangible Assets        
Impairment charges       11,600,000us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_DevelopedTechnologyRightsMember
MakerBot [Member]        
Goodwill        
Excess percentage of fair value of goodwill 5.00%ssys_ExcessPercentageOfFairValueOfGoodwill
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Goodwill 376,000,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		    376,000,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember
Goodwill impairment 102,500,000us-gaap_GoodwillImpairmentLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Expected term 5 years      
Growth rate (as a percent) 3.50%us-gaap_FairValueInputsLongTermRevenueGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Discount rate (as a percent) 13.50%us-gaap_FairValueInputsDiscountRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Decrease in growth rate (as a percent) (1.00%)ssys_FairValueMeasurementIncreaseDecreaseInGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Increase in discount rate (as a percent) 1.00%ssys_FairValueMeasurementIncreaseDecreaseInDiscountRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Decrease in fair value of goodwill due to change in growth rate 28,900,000ssys_IncreaseDecreaseInFairValueOfGoodwillDueToChangeInGrowthRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Decrease in fair value of goodwill due to change in discount rate $ 45,200,000ssys_IncreaseDecreaseInFairValueOfGoodwillDueToChangeInDiscountRate
/ us-gaap_StatementBusinessSegmentsAxis
= ssys_MakerbotMember 		     
Stratasys Shareholders [Member]        
Ownership percentage 55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ ssys_InvestorAxis
= ssys_StratasysShareholdersMember 		    55.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ ssys_InvestorAxis
= ssys_StratasysShareholdersMember
Objet Shareholders [Member]        
Ownership percentage 45.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ ssys_InvestorAxis
= ssys_ObjetShareholdersMember 		    45.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ ssys_InvestorAxis
= ssys_ObjetShareholdersMember