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Revenue Recognition (Details) $ in Millions	3 Months Ended		6 Months Ended
Revenue Recognition (Details) $ in Millions	Jun. 25, 2023 USD ($)	Jun. 26, 2022 USD ($)	Jun. 25, 2023 USD ($) segment item	Jun. 26, 2022 USD ($)
Disaggregation of Revenue
Number of distribution channels \| item			4
Number of geographic segments \| segment			3
Revenue	$ 532.8	$ 526.6	$ 1,004.5	$ 989.8
Minimum
Disaggregation of Revenue
Period of Business Operations			150 years
Wholesale
Disaggregation of Revenue
Revenue	324.9	316.1	$ 613.3	592.9
OEM
Disaggregation of Revenue
Revenue	81.1	75.4	152.4	147.8
Specialty
Disaggregation of Revenue
Revenue	105.0	112.4	195.5	206.2
DIY
Disaggregation of Revenue
Revenue	21.8	22.7	43.3	42.9
Residential & commercial flow control
Disaggregation of Revenue
Revenue	299.2	276.7	555.1	516.7
HVAC & gas
Disaggregation of Revenue
Revenue	154.8	162.2	298.7	308.9
Drains & water re-use
Disaggregation of Revenue
Revenue	50.9	52.8	94.0	99.2
Water quality
Disaggregation of Revenue
Revenue	27.9	34.9	56.7	65.0
Americas
Disaggregation of Revenue
Revenue	366.9	375.9	690.1	689.8
Americas \| Wholesale
Disaggregation of Revenue
Revenue	222.0	214.3	410.8	389.1
Americas \| OEM
Disaggregation of Revenue
Revenue	26.3	27.1	49.4	52.7
Americas \| Specialty
Disaggregation of Revenue
Revenue	97.5	112.4	188.0	206.2
Americas \| DIY
Disaggregation of Revenue
Revenue	21.1	22.1	41.9	41.8
Americas \| Residential & commercial flow control
Disaggregation of Revenue
Revenue	227.0	211.9	421.5	389.9
Americas \| HVAC & gas
Disaggregation of Revenue
Revenue	85.3	100.7	163.5	185.0
Americas \| Drains & water re-use
Disaggregation of Revenue
Revenue	28.1	29.8	50.9	52.6
Americas \| Water quality
Disaggregation of Revenue
Revenue	26.5	33.5	54.2	62.3
Europe
Disaggregation of Revenue
Revenue	135.6	127.9	263.9	257.8
Europe \| Wholesale
Disaggregation of Revenue
Revenue	81.9	81.0	163.0	165.0
Europe \| OEM
Disaggregation of Revenue
Revenue	53.0	46.3	99.5	91.7
Europe \| DIY
Disaggregation of Revenue
Revenue	0.7	0.6	1.4	1.1
Europe \| Residential & commercial flow control
Disaggregation of Revenue
Revenue	47.0	46.2	92.5	92.3
Europe \| HVAC & gas
Disaggregation of Revenue
Revenue	65.2	57.9	127.5	117.9
Europe \| Drains & water re-use
Disaggregation of Revenue
Revenue	22.3	22.7	41.9	45.5
Europe \| Water quality
Disaggregation of Revenue
Revenue	1.1	1.1	2.0	2.1
APMEA
Disaggregation of Revenue
Revenue	30.3	22.8	50.5	42.2
APMEA \| Wholesale
Disaggregation of Revenue
Revenue	21.0	20.8	39.5	38.8
APMEA \| OEM
Disaggregation of Revenue
Revenue	1.8	2.0	3.5	3.4
APMEA \| Specialty
Disaggregation of Revenue
Revenue	7.5		7.5
APMEA \| Residential & commercial flow control
Disaggregation of Revenue
Revenue	25.2	18.6	41.1	34.5
APMEA \| HVAC & gas
Disaggregation of Revenue
Revenue	4.3	3.6	7.7	6.0
APMEA \| Drains & water re-use
Disaggregation of Revenue
Revenue	0.5	0.3	1.2	1.1
APMEA \| Water quality
Disaggregation of Revenue
Revenue	$ 0.3	$ 0.3	$ 0.5	$ 0.6