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Revenue from Contracts with Customers | 9 Months Ended
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Sep. 30, 2018
Revenue from Contracts with Customers [Abstract] |
Revenue from Contracts with Customers | Note 2. Revenue from Contracts with Customers The Company's revenues are primarily derived from the sale of products. Our primary performance obligation (the sale of products) is satisfied upon shipment or delivery to our customers based on written sales terms, which is also when control is transferred. In most of the Company's PCC contracts, the price per ton is based upon the total number of tons sold to the customer during the year. Under these contracts, the price billed to the customer for shipments during the year is based on periodic estimates of the total annual volume that will be sold to such customer. Revenues are adjusted at the end of each year to reflect the actual volume sold. The Company also has consignment arrangements with certain customers in our Refractories segment. Revenues for these transactions are recorded when the consigned products are consumed by the customer and control is transferred to the customer. Revenue from sales of equipment, primarily in our Refractories segment, is recorded upon completion of installation and control is transferred to the customer. Revenue from services is recorded when the services have been performed. Revenue from long-term construction, primarily in our Energy Services segment, where our performance obligations are satisfied in phases, is recognized over time using certain output measures based on the measurement of the value transferred to the customer, including milestones achieved. The following table disaggregates our revenue by major source (product line) for the three and nine month periods ended September 30, 2018 and October 1, 2017 :
(millions of dollars) |  | Three Months Ended |  |  | Nine Months Ended |
Net Sales |  | Sep. 30, 2018 |  |  | Oct. 1, 2017 |  |  | Sep. 30, 2018 |  |  | Oct. 1, 2017 |
Metalcasting |  | $ | 77.8 |  |  | $ | 73.6 |  |  | $ | 245.8 |  |  | $ | 215.9 |
Household, Personal Care and Specialty Products |  |  | 71.9 |  |  |  | 42.5 |  |  |  | 179.2 |  |  |  | 123.3 |
Environmental Products |  |  | 26.3 |  |  |  | 21.6 |  |  |  | 64.2 |  |  |  | 51.8 |
Building Materials |  |  | 18.0 |  |  |  | 19.9 |  |  |  | 54.9 |  |  |  | 57.5 |
Basic Minerals |  |  | 25.5 |  |  |  | 31.2 |  |  |  | 77.2 |  |  |  | 90.5 |
Performance Materials |  |  | 219.5 |  |  |  | 188.8 |  |  |  | 621.3 |  |  |  | 539.0 |
Paper PCC |  |  | 93.1 |  |  |  | 96.3 |  |  |  | 284.6 |  |  |  | 282.0 |
Specialty PCC |  |  | 16.9 |  |  |  | 16.4 |  |  |  | 51.2 |  |  |  | 50.8 |
Ground Calcium Carbonate |  |  | 23.0 |  |  |  | 22.3 |  |  |  | 70.7 |  |  |  | 67.1 |
Talc |  |  | 13.3 |  |  |  | 12.7 |  |  |  | 40.3 |  |  |  | 41.0 |
Specialty Minerals |  |  | 146.3 |  |  |  | 147.7 |  |  |  | 446.8 |  |  |  | 440.9 |
Refractory Products |  |  | 66.7 |  |  |  | 56.6 |  |  |  | 195.7 |  |  |  | 169.4 |
Metallurgical Products |  |  | 12.4 |  |  |  | 12.3 |  |  |  | 38.3 |  |  |  | 38.6 |
Refractories |  |  | 79.1 |  |  |  | 68.9 |  |  |  | 234.0 |  |  |  | 208.0 |
Energy Services |  |  | 19.2 |  |  |  | 19.0 |  |  |  | 58.0 |  |  |  | 55.6 |
Total |  | $ | 464.1 |  |  | $ | 424.4 |  |  | $ | 1,360.1 |  |  | $ | 1,243.5 |

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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