Segment and Related Information, Segment Information (Details) $ in Millions	3 Months Ended
	Mar. 30, 2025 USD ($) Segment	Mar. 31, 2024 USD ($)
Segment and Related Information [Abstract]
Number of reportable segments | Segment	2
Net sales	$ 491.8	$ 534.5
Cost of goods sold	372.2	398.6
Production margin	119.6	135.9
Marketing and administrative expenses	50.6	53.0
Research and development expenses	5.8	5.6
Restructuring and other items, net	5.5	0.0
Income (loss) from operations	(160.1)	75.2
Depreciation, depletion and amortization	23.5	23.5
Capital expenditures	18.3	16.5
Consumer & Specialties [Member]
Segment and Related Information [Abstract]
Net sales	268.3	296.9
Restructuring and other items, net	2.5	0.0
Engineered Solutions [Member]
Segment and Related Information [Abstract]
Net sales	223.5	237.6
Restructuring and other items, net	0.8	0.0
Operating Segments [Member]
Segment and Related Information [Abstract]
Net sales	491.8	534.5
Cost of goods sold	372.2	398.6
Production margin	119.6	135.9
Marketing and administrative expenses	49.4	49.8
Research and development expenses	5.8	5.6
Restructuring and other items, net	3.3	0.0
Income (loss) from operations	61.1	80.5
Operating Segments [Member] | Consumer & Specialties [Member]
Segment and Related Information [Abstract]
Net sales	268.3	296.9
Cost of goods sold	215.8	233.3
Production margin	52.5	63.6
Marketing and administrative expenses	19.1	18.6
Research and development expenses	3.4	3.0
Restructuring and other items, net	2.5	0.0
Income (loss) from operations	27.5	42.0
Depreciation, depletion and amortization	10.8	11.4
Capital expenditures	11.5	6.5
Operating Segments [Member] | Engineered Solutions [Member]
Segment and Related Information [Abstract]
Net sales	223.5	237.6
Cost of goods sold	156.4	165.3
Production margin	67.1	72.3
Marketing and administrative expenses	30.3	31.2
Research and development expenses	2.4	2.6
Restructuring and other items, net	0.8	0.0
Income (loss) from operations	33.6	38.5
Depreciation, depletion and amortization	12.7	12.1
Capital expenditures	5.8	9.1
Reconciling Item [Member]
Segment and Related Information [Abstract]
Restructuring and other items, net	2.2	0.0
Corporate [Member]
Segment and Related Information [Abstract]
Restructuring and other items, net	2.2	0.0
Capital expenditures	$ 1.0	$ 0.9