Restructuring and Transformation Program - Restructuring Costs by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 38.3	$ 17.1	$ 62.3	$ 39.1
Corporate and other
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	17.1	12.1	25.0	27.2
Flow | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	9.7	2.4	18.5	5.0
Water Solutions | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	5.7	0.9	9.8	1.5
Pool | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 5.8	$ 1.7	$ 9.0	$ 5.4