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Revenue from Contracts with Customers (Tables) | 9 Months Ended
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Oct. 03, 2021
Revenue from Contracts with Customers [Abstract] |
Disaggregation of Revenue | The following table disaggregates our revenue by major source (product line) for the three and nine-month periods ended October 3, 2021 and September 27, 2020:
(millions of dollars) |  | Three Months Ended |  |  | Nine Months Ended |
Net Sales |  | Oct. 3, 2021 |  |  | Sep. 27, 2020 |  |  | Oct. 3, 2021 |  |  | Sep. 27, 2020 |
Household, Personal Care & Specialty Products |  | $ | 121.8 |  |  | $ | 93.9 |  |  | $ | 333.9 |  |  | $ | 278.0 |
Metalcasting |  |  | 72.9 |  |  |  | 66.3 |  |  |  | 235.0 |  |  |  | 180.8 |
Environmental Products |  |  | 39.8 |  |  |  | 30.2 |  |  |  | 105.8 |  |  |  | 104.5 |
Building Materials |  |  | 15.9 |  |  |  | 13.5 |  |  |  | 45.0 |  |  |  | 43.5 |
Performance Materials |  |  | 250.4 |  |  |  | 203.9 |  |  |  | 719.7 |  |  |  | 606.8 |
Paper PCC |  |  | 89.5 |  |  |  | 74.5 |  |  |  | 264.9 |  |  |  | 225.1 |
Specialty PCC |  |  | 18.2 |  |  |  | 17.3 |  |  |  | 57.1 |  |  |  | 49.7 |
Ground Calcium Carbonate |  |  | 25.0 |  |  |  | 23.2 |  |  |  | 74.5 |  |  |  | 66.4 |
Talc |  |  | 14.2 |  |  |  | 10.1 |  |  |  | 40.9 |  |  |  | 30.8 |
Specialty Minerals |  |  | 146.9 |  |  |  | 125.1 |  |  |  | 437.4 |  |  |  | 372.0 |
Refractory Products |  |  | 58.3 |  |  |  | 48.8 |  |  |  | 175.1 |  |  |  | 151.7 |
Metallurgical Products |  |  | 17.6 |  |  |  | 10.5 |  |  |  | 49.2 |  |  |  | 32.5 |
Refractories |  |  | 75.9 |  |  |  | 59.3 |  |  |  | 224.3 |  |  |  | 184.2 |
Total |  | $ | 473.2 |  |  | $ | 388.3 |  |  | $ | 1,381.4 |  |  | $ | 1,163.0 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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