Restructuring and Transformation Program - Restructuring Costs by Segment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 26.2	$ 12.6	$ 103.5	$ 74.9
Corporate and other
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	16.6	10.3	52.6	35.3
Flow \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	2.0	(1.6)	6.9	13.1
Water Solutions \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	4.7	1.1	32.3	14.7
Pool \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 2.9	$ 2.8	$ 11.7	$ 11.8

- Definition

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