Segment and Related Information, Restated Financial Results for Performance Materials Segment (Details) - USD ($) $ in Millions	3 Months Ended					6 Months Ended		12 Months Ended
	Jul. 04, 2021	Dec. 31, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Jul. 04, 2021	Jun. 28, 2020	Dec. 31, 2020
Segment and Related Information [Abstract]
Net sales	$ 455.6			$ 357.2		$ 908.2	$ 774.7
Income from operations	63.7			$ 27.2		122.5	84.9
% of Sales		14.10%	13.80%	11.70%	12.90%			13.20%
Metalcasting [Member]
Segment and Related Information [Abstract]
Net sales	80.5			$ 52.8		162.2	114.5
Household, Personal Care & Specialty Products [Member]
Segment and Related Information [Abstract]
Net sales	102.6			87.9		212.0	184.1
Environmental Products [Member]
Segment and Related Information [Abstract]
Net sales	39.9			37.6		65.9	74.3
Building Materials [Member]
Segment and Related Information [Abstract]
Net sales	15.4			13.2		29.2	30.0
Performance Materials [Member]
Segment and Related Information [Abstract]
Net sales	238.4	$ 219.0	$ 203.9	191.5	$ 211.4	469.3	402.9	$ 825.8
Income from operations		30.9	28.2	22.4	27.3			108.8
Performance Materials [Member] | Metalcasting [Member]
Segment and Related Information [Abstract]
Net sales	80.5	77.3	66.3	52.8	61.7	162.2	114.5	258.1
Performance Materials [Member] | Household, Personal Care & Specialty Products [Member]
Segment and Related Information [Abstract]
Net sales	102.6	102.2	93.9	87.9	96.2	212.0	184.1	380.2
Performance Materials [Member] | Environmental Products [Member]
Segment and Related Information [Abstract]
Net sales	39.9	27.1	30.2	37.6	36.7	65.9	74.3	131.6
Performance Materials [Member] | Building Materials [Member]
Segment and Related Information [Abstract]
Net sales	$ 15.4	$ 12.4	$ 13.5	$ 13.2	$ 16.8	$ 29.2	$ 30.0	$ 55.9