Restructuring and Transformation Program - Restructuring Costs by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 52.1	$ 38.3	$ 77.3	$ 62.3
Corporate and other
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	18.9	17.1	36.0	25.0
Flow \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	3.4	7.7	4.9	14.7
Water Solutions \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	22.1	7.7	27.6	13.6
Pool \| Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and transformation costs	$ 7.7	$ 5.8	$ 8.8	$ 9.0

- Definition

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