Segment and Related Information - Segment Information (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 28, 2025	Jun. 29, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Segment and Related Information [Abstract]
Net sales	$ 532.4		$ 524.7	$ 1,553.1	$ 1,600.4
Cost of goods sold	395.4		389.5	1,159.6	1,185.4
Production margin	137.0		135.2	393.5	415.0
Marketing and administrative expenses	53.0		50.1	155.8	156.4
Research and development expenses	5.6		5.9	17.1	17.3
Restructuring and other items	0.0	$ 5.8	0.0	11.3	0.0
Gain on sale of assets, net	0.0		0.0	(5.6)	0.0
Income (loss) from operations	70.9		76.6	(14.6)	202.4
Depreciation, depletion and amortization	22.4		23.1	67.9	70.6
Capital expenditures	27.3		24.7	74.7	61.4
Consumer & Specialties [Member]
Segment and Related Information [Abstract]
Net sales	277.4		280.3	823.4	861.5
Engineered Solutions [Member]
Segment and Related Information [Abstract]
Net sales	255.0		244.4	729.7	738.9
Operating Segments [Member]
Segment and Related Information [Abstract]
Net sales	532.4		524.7	1,553.1	1,600.4
Cost of goods sold	395.4		389.5	1,159.6	1,185.4
Production margin	137.0		135.2	393.5	415.0
Marketing and administrative expenses	49.2		48.8	148.8	148.1
Research and development expenses	5.6		5.9	17.1	17.3
Restructuring and other items				9.1	0.0
Gain on sale of assets, net				(5.6)	0.0
Income (loss) from operations	82.2		80.5	224.1	249.6
Operating Segments [Member] | Consumer & Specialties [Member]
Segment and Related Information [Abstract]
Net sales	277.4		280.3	823.4	861.5
Cost of goods sold	218.0		217.8	651.9	670.6
Production margin	59.4		62.5	171.5	190.9
Marketing and administrative expenses	18.9		17.5	57.1	53.8
Research and development expenses	3.1		3.3	9.7	9.5
Restructuring and other items				5.8	0.0
Gain on sale of assets, net				0.0	0.0
Income (loss) from operations	37.4		41.7	98.9	127.6
Depreciation, depletion and amortization	10.8		11.6	31.8	35.2
Capital expenditures	17.4		8.3	47.8	27.5
Operating Segments [Member] | Engineered Solutions [Member]
Segment and Related Information [Abstract]
Net sales	255.0		244.4	729.7	738.9
Cost of goods sold	177.4		171.7	507.7	514.8
Production margin	77.6		72.7	222.0	224.1
Marketing and administrative expenses	30.3		31.3	91.7	94.3
Research and development expenses	2.5		2.6	7.4	7.8
Restructuring and other items				3.3	0.0
Gain on sale of assets, net				(5.6)	0.0
Income (loss) from operations	44.8		38.8	125.2	122.0
Depreciation, depletion and amortization	11.6		11.5	36.1	35.4
Capital expenditures	9.0		15.1	23.3	30.8
Corporate [Member]
Segment and Related Information [Abstract]
Capital expenditures	$ 0.9		$ 1.3	$ 3.6	$ 3.1