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Segments and Geographic Areas (Schedule of Net Sales by Region) (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segments and Geographic Areas [Abstract]
Export sales	$ 52,300,000ipar_ExportSales	$ 50,400,000ipar_ExportSales	$ 38,800,000ipar_ExportSales
Revenues from External Customers [Line Items]
Net sales	499,300,000us-gaap_Revenues	563,600,000us-gaap_Revenues	654,100,000us-gaap_Revenues
North America [Member]
Revenues from External Customers [Line Items]
Net sales	134,600,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	154,300,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember	175,400,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_NorthAmericaMember
Europe [Member]
Revenues from External Customers [Line Items]
Net sales	177,900,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	215,600,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember	241,300,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_EuropeMember
Central and South America [Member]
Revenues from External Customers [Line Items]
Net sales	49,200,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_LatinAmericaMember	42,400,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_LatinAmericaMember	53,000,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_LatinAmericaMember
Middle East [Member]
Revenues from External Customers [Line Items]
Net sales	40,300,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_MiddleEastMember	43,300,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_MiddleEastMember	62,100,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_MiddleEastMember
Asia [Member]
Revenues from External Customers [Line Items]
Net sales	85,500,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember	98,600,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember	115,300,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = us-gaap_AsiaMember
Other [Member]
Revenues from External Customers [Line Items]
Net sales	$ 11,800,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ipar_SegmentGeographicalGroupsOfCountriesGroupSixMember	$ 9,400,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ipar_SegmentGeographicalGroupsOfCountriesGroupSixMember	$ 7,000,000us-gaap_Revenues / us-gaap_StatementGeographicalAxis = ipar_SegmentGeographicalGroupsOfCountriesGroupSixMember

X

- Definition

Sales from export over the period.

+ References

No definition available.

+ Details

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Balance Type:	credit
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X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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