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- Acquisition (Details) - USD ($)
$ in Thousands
6 Months Ended
Apr. 01, 2015
Jun. 30, 2015
Jun. 30, 2014
Business Acquisition [Line Items]      
Acquisition of business, net of cash acquired   $ (18,302) $ 0
Advantage Industrial Automation      
Business Acquisition [Line Items]      
Percentage of voting interest acquired 100.00%    
Acquisition of business, net of cash acquired $ (18,302)    
Goodwill 7,057    
Other Intangible Assets $ 8,283