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Schedule of Restructuring, Acquisition and Divestiture Related Costs (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Restructuring Cost And Reserve [Line Items]      
Restructuring charges $ 2,970 $ 5,840 $ 414
Acquisition and related charges 4,975 1,301 1,521
Divestiture related charges   1,113  
Total acquisition and divestiture related charges 4,975 2,414 1,521
Total restructuring, acquisition and divestiture related costs 7,945 8,254 1,935
2016 Restructuring      
Restructuring Cost And Reserve [Line Items]      
Restructuring charges 3,049 3,148  
2015 Restructuring      
Restructuring Cost And Reserve [Line Items]      
Restructuring charges   1,484  
2013 Restructuring      
Restructuring Cost And Reserve [Line Items]      
Restructuring charges     25
2011 Restructuring      
Restructuring Cost And Reserve [Line Items]      
Restructuring charges $ (79) $ 1,208 $ 389