Segment Information - Financial Information by Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Net sales	$ 969.2	$ 798.5	$ 2,776.2	$ 2,221.8
Segment income	167.3	128.1	486.2	339.9
Operating Segments
Segment Reporting Information [Line Items]
Net sales	969.2	798.5	2,776.2	2,221.8
Segment income	179.7	140.5	519.0	376.7
Consumer Solutions | Operating Segments
Segment Reporting Information [Line Items]
Net sales	613.6	470.8	1,711.9	1,260.8
Segment income	144.2	113.8	418.6	295.3
Industrial & Flow Technologies | Operating Segments
Segment Reporting Information [Line Items]
Net sales	355.1	327.4	1,063.1	960.1
Segment income	52.4	42.7	159.5	131.5
Other | Operating Segments
Segment Reporting Information [Line Items]
Net sales	0.5	0.3	1.2	0.9
Segment income	$ (16.9)	$ (16.0)	$ (59.1)	$ (50.1)