Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 07, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	INTER PARFUMS INC
Entity Central Index Key	0000822663
Document Type	10-Q
Trading Symbol	IPAR
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		31,186,748
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2017