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Restructuring and Other Charges, Net - Additional Information (Detail)
$ in Thousands
 3 Months Ended
Mar. 31, 2019
USD ($)
Position
employee
Mar. 31, 2018
USD ($)
Restructuring Cost and Reserve [Line Items]    
Restructuring charge $ 16,174 $ 717
2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Restructuring charge $ 24,500  
Number of positions expected to be eliminated | employee 370  
Employee-Related Costs | 2019 Severance Initiatives    
Restructuring Cost and Reserve [Line Items]    
Restructuring charge $ 16,174  
Employee Severance    
Restructuring Cost and Reserve [Line Items]    
Restructuring charge 700  
Employee Severance | 2019 Severance Initiatives    
Restructuring Cost and Reserve [Line Items]    
Payments for restructuring $ 900  
Number of positions expected to be eliminated | Position 190  
Employee Severance | 2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Payments for restructuring $ 500 1,700
Contract Termination    
Restructuring Cost and Reserve [Line Items]    
Restructuring charge   $ 700
Minimum | 2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Expected restructuring costs 30,000  
Minimum | Employee Severance | 2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Expected restructuring costs 24,000  
Minimum | Facility-Related Costs    
Restructuring Cost and Reserve [Line Items]    
Expected restructuring costs 6,000  
Maximum | 2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Expected restructuring costs 35,000  
Maximum | Employee Severance | 2017 Productivity Program    
Restructuring Cost and Reserve [Line Items]    
Expected restructuring costs $ 26,000