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Income Taxes (Tables) | 6 Months Ended
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Jun. 30, 2019
Schedule of provision for income taxes and effective tax rate | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended June 30, |  | Six Months Ended June 30, | ​
​ | ​ | 2019 | ​ | 2018 | ​ | 2019 | ​ | 2018 | ​
Provision for income taxes | ​ | $ | (78.7) | ​ | $ | (94.5) | ​ | $ | (158.3) | ​ | $ | (180.9) | ​
Effective tax rate | ​ |  | 21.3 | % |  | 24.7 | % |  | 22.0 | % |  | 24.5 | %

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- Definition Schedule of provision for income tax expense (benefit) and effective tax rate using percentage. + References No definition available. + Details
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Namespace Prefix: | aph_
Data Type: | nonnum:textBlockItemType
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Period Type: | duration