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

Income Taxes (Details)

v3.2.0.727
Income Taxes (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Income Taxes [Abstract]        
Effective Income Tax Rate, Continuing Operations 32.30% 96.90% 7.90% 164.80%
Change in Fair Value of Obligations in Connection With Acquisitions $ (6,680) $ 628 $ (19,936) $ (6,867)
Goodwill impairment     150,400  
Reduction in income tax expense associated with amortization of intangible assets $ 1,700      
Increase in income tax expense associated with amortization of intangible assets 3,400      
Income Tax [Line Items]        
Valuation allowance recorded against deferred tax assets 17,200   17,200  
MakerBot [Member]        
Income Tax [Line Items]        
Reversal of deferred tax liabilities $ 17,200   $ 17,200