Revenue from Contracts with Customers (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2023 USD ($)	Jul. 03, 2022 USD ($)	Jul. 02, 2023 USD ($) Segment	Jul. 03, 2022 USD ($)
Revenue from Contracts with Customers [Abstract]
Number of reportable segments | Segment			2
Revenue from Contracts with Customers [Abstract]
Net sales	$ 551.5	$ 557.0	$ 1,097.6	$ 1,076.1
Household & Personal Care [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	125.5	118.9	254.7	239.3
Specialty Additives [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	164.8	164.3	332.9	327.4
High-Temperature Technologies [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	182.6	186.7	361.2	356.6
Environmental & Infrastructure [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	78.6	87.1	148.8	152.8
Consumer & Specialties [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	290.3	283.2	587.6	566.7
Consumer & Specialties [Member] | Household & Personal Care [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	125.5	118.9	254.7	239.3
Consumer & Specialties [Member] | Specialty Additives [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	164.8	164.3	332.9	327.4
Engineered Solutions [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	261.2	273.8	510.0	509.4
Engineered Solutions [Member] | High-Temperature Technologies [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	182.6	186.7	361.2	356.6
Engineered Solutions [Member] | Environmental & Infrastructure [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	$ 78.6	$ 87.1	$ 148.8	$ 152.8