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Schedule of Restructuring, Acquisition and Divestiture Related Costs (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 02, 2015
Sep. 26, 2014
Oct. 02, 2015
Sep. 26, 2014
Restructuring Cost And Reserve [Line Items]        
Restructuring charges $ 1,051 $ 233 $ 3,188 $ 73
Acquisition charges 282 26 546 774
Acquisition related incentive compensation   512 (612) 1,102
Divestiture related charges 46   1,110  
Acquisition and divestiture related charges 328 538 1,044 1,876
Restructuring, acquisition and divestiture related costs 1,379 771 4,232 1,949
2011 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Restructuring charges 300 $ 233 953 139
2013 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Restructuring charges       $ (66)
2015 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Restructuring charges     1,484  
2016 Restructuring        
Restructuring Cost And Reserve [Line Items]        
Restructuring charges $ 751   $ 751