Basis of Presentation and Summary of Significant Accounting Policies - Net Sales Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	[1]	$ 4,121.8	$ 3,764.8	$ 3,017.8
Residential
Disaggregation of Revenue [Line Items]
Net sales		2,613.6	2,437.6	1,883.4
Commercial
Disaggregation of Revenue [Line Items]
Net sales		809.1	665.9	528.6
Industrial
Disaggregation of Revenue [Line Items]
Net sales		699.1	661.3	605.8
U.S.
Disaggregation of Revenue [Line Items]
Net sales		2,913.2	2,571.2	2,011.7
Western Europe
Disaggregation of Revenue [Line Items]
Net sales		439.2	460.4	375.3
Developing
Disaggregation of Revenue [Line Items]
Net sales		515.5	487.1	427.5
Other Developed
Disaggregation of Revenue [Line Items]
Net sales		$ 253.9	$ 246.1	$ 203.3

[1] (1) One customer in the Consumer Solutions’ pool business represented approximately 20%, 20%, and 15% of our consolidated net sales in 2022, 2021 and 2020, respectively.