Restructuring and Transformation Program - Costs Included in Selling, General & Administrative Expenses (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3.1	$ 1.9
Transformation costs	8.5	5.5
Total restructuring and transformation costs	11.6	7.4
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Transformation costs	1.9	0.0
Other Transformation
Restructuring Cost and Reserve [Line Items]
Transformation costs	6.6	5.5
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2.5	1.9
Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 0.6	$ 0.0