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Earnings per Share (Tables) | 9 Months Ended
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Oct. 03, 2021
Earnings per Share [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share:
|  | Three Months Ended |  |  | Nine Months Ended |
(in millions, except per share data) |  | Oct. 3, 2021 |  |  | Sep. 27, 2020 |  |  | Oct. 3, 2021 |  |  | Sep. 27, 2020 |
Net income attributable to Minerals Technologies Inc. |  | $ | 41.4 |  |  | $ | 28.3 |  |  | $ | 123.2 |  |  | $ | 81.3 |
Weighted average shares outstanding |  |  | 33.5 |  |  |  | 34.1 |  |  |  | 33.7 |  |  |  | 34.2 |
Dilutive effect of stock options and stock units |  |  | 0.3 |  |  |  | — |  |  |  | 0.2 |  |  |  | — |
Weighted average shares outstanding, adjusted |  |  | 33.8 |  |  |  | 34.1 |  |  |  | 33.9 |  |  |  | 34.2 |
Basic earnings per share attributable to Minerals Technologies Inc. |  | $ | 1.24 |  |  | $ | 0.83 |  |  | $ | 3.66 |  |  | $ | 2.38 |
Diluted earnings per share attributable to Minerals Technologies Inc. |  | $ | 1.22 |  |  | $ | 0.83 |  |  | $ | 3.63 |  |  | $ | 2.38 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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