XML 128 R113.htm IDEA: XBRL DOCUMENT v3.20.4
Restructuring and Other Charges - Reconciliation of Restructuring Liability (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]      
Beginning Balance $ 6.8 $ 10.5  
Provision 15.9 14.7 $ 24.1
Cash Expenditures [1] (15.1) (18.0)  
Non-Cash Write-offs   (0.4)  
Ending Balance 7.6 6.8 10.5
Workforce Reduction Costs [Member]      
Restructuring Cost and Reserve [Line Items]      
Beginning Balance 6.7 9.9  
Provision 14.6 13.5  
Cash Expenditures [1] (14.4) (16.6)  
Non-Cash Write-offs   (0.1)  
Ending Balance 6.9 6.7 9.9
Other [Member]      
Restructuring Cost and Reserve [Line Items]      
Beginning Balance 0.1 0.6  
Provision 1.3 1.2  
Cash Expenditures [1] (0.7) (1.4)  
Non-Cash Write-offs   (0.3)  
Ending Balance $ 0.7 $ 0.1 $ 0.6
[1] Cash expenditures primarily related to severance charges.