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v3.21.1

Segment and Related Information, Restated Financial Results for Performance Materials Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 04, 2021 | Dec. 31, 2020 | Sep. 27, 2020 | Jun. 28, 2020 | Mar. 29, 2020 | Dec. 31, 2020
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | $ 452.6 |  |  |  | $ 417.5 |
Income from operations | 58.8 |  |  |  | $ 57.7 |
% of Sales |  | 14.10% | 13.80% | 11.70% | 12.90% | 13.20%
Metalcasting [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 81.7 |  |  |  | $ 61.7 |
Household, Personal Care & Specialty Products [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 109.4 |  |  |  | 96.2 |
Environmental Products [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 26.0 |  |  |  | 36.7 |
Building Materials [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 13.8 |  |  |  | 16.8 |
Performance Materials [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 230.9 | $ 219.0 | $ 203.9 | $ 191.5 | 211.4 | $ 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 | 81.7 | 77.3 | 66.3 | 52.8 | 61.7 | 258.1
Performance Materials [Member] | Household, Personal Care & Specialty Products [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 109.4 | 102.2 | 93.9 | 87.9 | 96.2 | 380.2
Performance Materials [Member] | Environmental Products [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | 26.0 | 27.1 | 30.2 | 37.6 | 36.7 | 131.6
Performance Materials [Member] | Building Materials [Member] |  |  |  |  |  |
Segment and Related Information [Abstract] |  |  |  |  |  |
Net sales | $ 13.8 | $ 12.4 | $ 13.5 | $ 13.2 | $ 16.8 | $ 55.9

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