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

Goodwill (Narrative) (Details)

v3.10.0.1
Goodwill (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Line Items]      
Goodwill $ 385,849 $ 387,108 $ 385,629
Stratasys-Objet reporting unit [Member] | Goodwill [Member]      
Goodwill [Line Items]      
Expected cash flow period 5 years    
Growth rate (as a percent) 3.10%    
Discount rate (as a percent) 14.00%    
Percentage of decrease in terminal year growth rate 1.00%    
Percentage of increase in terminal year growth rate 1.00%    
Percentage of fair value exceeding carrying value of reporting units 8.00% 7.00% 5.00%
Goodwill $ 386,000 $ 387,000 $ 386,000
Change in fair value due to 1% decrease in terminal year growth rate 48,000    
Change in fair value due to 1% increase in terminal year growth rate $ 88,000