v3.24.0.1
Restructuring Costs - Summary of Company's Net Pretax Restructuring Charges (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net $ 29.7 $ 63.0 $ 85.1
CCS [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net 14.0 17.1 62.0
OWN [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net 6.6 22.4 3.6
NICS [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net 12.4 9.9 8.5
ANS [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net (6.0) 12.2 9.2
Corporate and Other [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring costs, net $ 2.7 $ 1.4 $ 1.8