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Assets and Liabilities Held for Sale (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Relative size of the disposal group compared to the total company, in terms of revenue 2.00%    
Impairment of Long-Lived Assets $ 0 $ 11,199 $ 0
Impairment loss recorded on intangible assets   10,577  
Impairment loss recorded on fixed assets   622  
Assets      
Total Assets Held for Sale 0 6,826  
Liabilities      
Total Liabilities Held for Sale $ 0 454  
Green Machines      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Impairment of Long-Lived Assets   11,199  
Impairment loss recorded on intangible assets   10,577  
Impairment loss recorded on fixed assets   622  
Assets      
Accounts Receivable   1,715  
Inventories   4,679  
Prepaid Expenses   239  
Property, Plant and Equipment, net   193  
Total Assets Held for Sale   6,826  
Liabilities      
Employee Compensation and Benefits   338  
Other Current Liabilities   116  
Total Liabilities Held for Sale   $ 454