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Acquisitions and Goodwill Acquisition Detail (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Business Acquisition [Line Items]      
Payments to Acquire Businesses, Gross $ 0 $ 2,576  
Perfect Products [Member]      
Business Acquisition [Line Items]      
Payments to Acquire Businesses, Gross     $ 1,300
Business Combination, Contingent Consideration, Liability     30
Feeney [Member]      
Business Acquisition [Line Items]      
Payments to Acquire Businesses, Gross     1,300
Business Combination, Contingent Consideration, Liability     100
Mattic [Member]      
Business Acquisition [Line Items]      
Payments to Acquire Businesses, Gross     3,500
Business Combination, Contingent Consideration, Liability     $ 300