Restructuring - Restructuring Costs by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Total restructuring and transformation costs	$ 50.7	$ 83.5	$ 19.1
Other
Restructuring Cost and Reserve [Line Items]
Total restructuring and transformation costs	38.3	25.9	17.3
Flow
Restructuring Cost and Reserve [Line Items]
Total restructuring and transformation costs	3.4	2.2	0.9
Water Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring and transformation costs	(0.1)	41.1	0.6
Pool
Restructuring Cost and Reserve [Line Items]
Total restructuring and transformation costs	$ 9.1	$ 14.3	$ 0.3