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Cost-Reduction Actions - Additional Information (Detail)
$ in Millions
 3 Months Ended
Mar. 31, 2020
USD ($)
employee
Mar. 31, 2019
USD ($)
Restructuring Cost and Reserve [Line Items]    
Cost-reduction charges and other costs $ 27.5 $ 2.6
Charges related to work-force reductions 8.5 (0.9)
Cost of revenue | Services    
Restructuring Cost and Reserve [Line Items]    
Cost-reduction charges and other costs 5.9 (3.7)
Selling, general and administrative expenses    
Restructuring Cost and Reserve [Line Items]    
Cost-reduction charges and other costs 2.5 5.0
Research and development expenses    
Restructuring Cost and Reserve [Line Items]    
Cost-reduction charges and other costs 0.1 1.3
Other income (expense), net    
Restructuring Cost and Reserve [Line Items]    
Cost-reduction charges and other costs 19.0  
Net foreign currency losses    
Restructuring Cost and Reserve [Line Items]    
Other expenses related to the cost-reduction effort 19.0  
Lease abandonment costs and asset write-offs    
Restructuring Cost and Reserve [Line Items]    
Other expenses related to the cost-reduction effort   $ 3.5
U.S.    
Restructuring Cost and Reserve [Line Items]    
Charges related to work-force reductions $ 2.3  
Number of employees | employee 67  
Non-U.S.    
Restructuring Cost and Reserve [Line Items]    
Charges related to work-force reductions $ 7.4  
Number of employees | employee 223  
Non-U.S. | Changes in estimates    
Restructuring Cost and Reserve [Line Items]    
Charges related to work-force reductions $ (1.2)