Revenue from Contracts with Customers (Details) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2023 USD ($)	Oct. 02, 2022 USD ($)	Oct. 01, 2023 USD ($) Segment	Oct. 02, 2022 USD ($)
Revenue from Contracts with Customers [Abstract]
Number of reportable segments | Segment			2
Revenue from Contracts with Customers [Abstract]
Net sales	$ 547.8	$ 541.9	$ 1,645.4	$ 1,617.9
Household & Personal Care [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	128.9	118.7	383.6	358.0
Specialty Additives [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	162.3	166.0	495.2	493.4
High-Temperature Technologies [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	177.4	176.1	538.6	532.7
Environmental & Infrastructure [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	79.2	81.1	228.0	233.8
Consumer & Specialties [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	291.2	284.7	878.8	851.4
Consumer & Specialties [Member] | Household & Personal Care [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	128.9	118.7	383.6	358.0
Consumer & Specialties [Member] | Specialty Additives [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	162.3	166.0	495.2	493.4
Engineered Solutions [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	256.6	257.2	766.6	766.5
Engineered Solutions [Member] | High-Temperature Technologies [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	177.4	176.1	538.6	532.7
Engineered Solutions [Member] | Environmental & Infrastructure [Member]
Revenue from Contracts with Customers [Abstract]
Net sales	$ 79.2	$ 81.1	$ 228.0	$ 233.8