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

Equity (Schedule of Stock Option Activity) (Details)

v2.4.1.9
Equity (Schedule of Stock Option Activity) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Number of Options  
Options Outstanding as of December 31, 2013 2,007,433us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Granted in 2014 239,583us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
GrabCAD options from merger in 2014 72,876ssys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsFromMerger
Exercised in 2014 (557,605)us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised
Forfeited in 2014 (43,046)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
Options Outstanding as of December 31, 2014 1,719,241us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Exercisable options as of December 2014 870,569us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
Weighted Average Exercise Price  
Options Outstanding as of December 31, 2013 $ 29.66us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Granted in 2014 $ 103.55us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
GrabCAD options from merger in 2014 $ 7.28ssys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsFromMergerWeightedAverageExercisePrice
Exercised in 2014 $ 14.14us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
Forfeited in 2014 $ 52.22us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
Options Outstanding as of December 31, 2014 $ 43.89us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Exercisable options as of December 2014 $ 22.70us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
Minimum [Member]  
Weighted Average Exercise Price  
Options Outstanding as of December 31, 2013 $ 2.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Granted in 2014 $ 91.48us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
GrabCAD options from merger in 2014 $ 2.89ssys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsFromMergerWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Exercised in 2014 $ 2.21us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Forfeited in 2014 $ 2.74us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Options Outstanding as of December 31, 2014 $ 2.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Exercisable options as of December 2014 $ 2.21us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]  
Weighted Average Exercise Price  
Options Outstanding as of December 31, 2013 $ 120.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Granted in 2014 $ 115.12us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
GrabCAD options from merger in 2014 $ 9.32ssys_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsFromMergerWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Exercised in 2014 $ 99.01us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Forfeited in 2014 $ 120.51us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Options Outstanding as of December 31, 2014 $ 120.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Exercisable options as of December 2014 $ 120.51us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember