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Segments and Geographic Areas (Details 1) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | $ 675,600 | $ 591,300 | $ 521,100
North America [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 210,200 | 176,900 | 149,000
European Union [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 233,600 | 214,800 | 194,700
Asia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 109,000 | 88,000 | 81,300
Middle East [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 59,300 | 50,500 | 41,600
Central and South America [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | 51,700 | 51,200 | 44,000
Segment Geographical Groups Of Countries Group Six [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales | $ 11,800 | $ 9,900 | $ 10,500

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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References No definition available. + Details
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Namespace Prefix: | ipar_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |