Quarterly report pursuant to Section 13 or 15(d)

Restructuring Charges - Additional Information (Details)

v3.3.0.814
Restructuring Charges - Additional Information (Details)
 3 Months Ended 9 Months Ended
Sep. 29, 2015
Employee
Aug. 21, 2015
Position
Employee
Sep. 30, 2015
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Restructuring Cost And Reserve [Line Items]          
Restructuring     $ 2,561,000 $ 2,561,000 $ 84,000
Total expenses on restructuring activities     2,900,000    
Expected future payments for restructuring     2,700,000 2,700,000  
Severance, Other Termination Benefits and Outplacement Services [Member]          
Restructuring Cost And Reserve [Line Items]          
Restructuring     2,200,000 2,174,000  
Expected additional restructuring charges in the fourth quarter     $ 300,000 300,000  
Contract Termination Costs [Member]          
Restructuring Cost And Reserve [Line Items]          
Restructuring       $ 387,000  
Facility Costs [Member]          
Restructuring Cost And Reserve [Line Items]          
Restructuring         $ 84,000
2015 Restructuring [Member]          
Restructuring Cost And Reserve [Line Items]          
Number of positions eliminated | Position   58      
Number of open positions eliminated | Position   20      
Number of employees eliminated | Employee 5 38