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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share |
Schedule of the reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
(dollars and shares in millions, except per share data) |  | 2019 |  | 2018 |  | 2019 |  | 2018
Net income attributable to Amphenol Corporation shareholders | ​ | $ | 280.3 | ​ | $ | 316.6 | ​ | $ | 836.3 | ​ | $ | 866.9
Basic weighted average common shares outstanding | ​ |  | 296.6 | ​ |  | 300.5 | ​ |  | 297.6 | ​ |  | 301.7
Effect of dilutive stock options | ​ |  | 9.6 | ​ |  | 11.9 | ​ |  | 10.2 | ​ |  | 11.9
Diluted weighted average common shares outstanding | ​ |  | 306.2 | ​ |  | 312.4 | ​ |  | 307.8 | ​ |  | 313.6
Earnings per share attributable to Amphenol Corporation shareholders: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Basic | ​ | $ | 0.95 | ​ | $ | 1.05 | ​ | $ | 2.81 | ​ | $ | 2.87
Diluted | ​ | $ | 0.92 | ​ | $ | 1.01 | ​ | $ | 2.72 | ​ | $ | 2.76

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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