Revenue Recognition (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 29, 2024 USD ($)	Sep. 24, 2023 USD ($)	Sep. 29, 2024 USD ($) segment item	Sep. 24, 2023 USD ($)
Disaggregation of Revenue
Number of distribution channels | item			4
Number of geographic segments | segment			3
Revenue	$ 543.6	$ 504.3	$ 1,711.8	$ 1,508.8
Minimum
Disaggregation of Revenue
Period of Business Operations			150 years
Wholesale
Disaggregation of Revenue
Revenue	362.9	306.0	$ 1,135.2	919.2
OEM
Disaggregation of Revenue
Revenue	58.4	74.5	189.1	227.0
Specialty
Disaggregation of Revenue
Revenue	103.7	105.0	324.6	300.6
DIY
Disaggregation of Revenue
Revenue	18.6	18.8	62.9	62.0
Residential & commercial flow control
Disaggregation of Revenue
Revenue	327.5	280.0	1,034.1	835.3
HVAC & gas
Disaggregation of Revenue
Revenue	129.4	146.6	412.8	445.2
Drains & water re-use
Disaggregation of Revenue
Revenue	60.7	49.4	182.7	143.4
Water quality
Disaggregation of Revenue
Revenue	26.0	28.3	82.2	84.9
Americas
Disaggregation of Revenue
Revenue	400.0	351.0	1,266.9	1,041.1
Americas | Wholesale
Disaggregation of Revenue
Revenue	263.0	211.8	829.4	622.6
Americas | OEM
Disaggregation of Revenue
Revenue	23.5	25.0	76.5	74.4
Americas | Specialty
Disaggregation of Revenue
Revenue	95.4	96.0	299.9	284.0
Americas | DIY
Disaggregation of Revenue
Revenue	18.1	18.2	61.1	60.1
Americas | Residential & commercial flow control
Disaggregation of Revenue
Revenue	256.3	212.9	818.0	634.4
Americas | HVAC & gas
Disaggregation of Revenue
Revenue	82.9	82.8	261.7	246.3
Americas | Drains & water re-use
Disaggregation of Revenue
Revenue	36.0	28.0	109.0	78.9
Americas | Water quality
Disaggregation of Revenue
Revenue	24.8	27.3	78.2	81.5
Europe
Disaggregation of Revenue
Revenue	107.3	120.2	344.7	384.1
Europe | Wholesale
Disaggregation of Revenue
Revenue	73.7	71.6	235.4	234.6
Europe | OEM
Disaggregation of Revenue
Revenue	33.1	48.0	107.5	147.6
Europe | DIY
Disaggregation of Revenue
Revenue	0.5	0.6	1.8	1.9
Europe | Residential & commercial flow control
Disaggregation of Revenue
Revenue	38.5	38.6	127.9	131.2
Europe | HVAC & gas
Disaggregation of Revenue
Revenue	43.8	60.0	141.8	187.4
Europe | Drains & water re-use
Disaggregation of Revenue
Revenue	24.1	20.8	72.0	62.7
Europe | Water quality
Disaggregation of Revenue
Revenue	0.9	0.8	3.0	2.8
APMEA
Disaggregation of Revenue
Revenue	36.3	33.1	100.2	83.6
APMEA | Wholesale
Disaggregation of Revenue
Revenue	26.2	22.6	70.4	62.0
APMEA | OEM
Disaggregation of Revenue
Revenue	1.8	1.5	5.1	5.0
APMEA | Specialty
Disaggregation of Revenue
Revenue	8.3	9.0	24.7	16.6
APMEA | Residential & commercial flow control
Disaggregation of Revenue
Revenue	32.7	28.5	88.2	69.7
APMEA | HVAC & gas
Disaggregation of Revenue
Revenue	2.7	3.8	9.3	11.5
APMEA | Drains & water re-use
Disaggregation of Revenue
Revenue	0.6	0.6	1.7	1.8
APMEA | Water quality
Disaggregation of Revenue
Revenue	$ 0.3	$ 0.2	$ 1.0	$ 0.6